Part 1

It was the smell of vinegar that hit me first. Anyone who works with archival media knows that scent—it’s the smell of magnetic tape degrading, “vinegar syndrome,” the slow chemical suicide of history. But as I sat in the basement editing bay of the university archive in Boston, creating digital backups of a collection labeled Case File: Klingenberg-76, the smell seemed to carry something else. Something like sulfur. Or, as the files would later describe it, “burnt feces.”

My name is Mark, and I’m a digital archivist. My job is usually boring: digitizing old sermons or city council meetings. But this reel was different. It was part of a bundle acquired from a private collector in Germany, related to the 1978 negligent homicide trial of two priests and two parents. The subject was a 23-year-old girl named Anneliese Michel.

You might know the movie The Exorcism of Emily Rose. That was Hollywood. What I had on my desk was the reality. And reality doesn’t have a soundtrack or jump scares. Reality is just the hiss of static and the sound of a young girl screaming in a voice that cannot physically come from human vocal cords.

The timeline I was piecing together began innocently enough. Klingenberg, Bavaria. 1968. Anneliese was 16. She was bright, religious, normal. Then came the blackouts. She felt a weight pressing on her chest at night, pinning her to the mattress. Sleep paralysis, right? That’s what I told myself as I adjusted the gain on the audio track.

But then I played the file marked Transcript_Interview_Mother_1973.

Through the headphones, the static cleared. I heard the description of Anneliese staring at a statue of the Virgin Mary. Her mother’s voice was trembling, translated by a court interpreter. She said Anneliese’s eyes turned “jet black.” She said her daughter’s hands contorted into “thick paws with claws.”

I paused the track. The air in the server room felt heavy. The humming of the cooling fans seemed to drop in pitch. I looked at the waveform on my monitor. There was a spike in the audio—a low frequency thrum that shouldn’t have been picked up by 1970s microphones.

I wasn’t alone in that room. I could feel it. The same way you feel someone staring at the back of your neck in a crowded train station. I pressed play again, and that’s when I heard the knocking. Not on the tape.

The knocking was coming from inside the wall behind my monitor.

Part 2

I tried to rationalize the sound. Old pipes. Settling foundation. Rats. The university library was a brutalist concrete block built in the 70s; it made noises. But the knocking had a rhythm. Tap. Tap. Tap. A pause. Tap. Tap. Tap.

I turned the volume up on the headset, drowning out the room, and focused back on the digital timeline I was compiling for the archive’s metadata. To understand the death of Anneliese Michel, you have to understand the failure of the systems meant to save her. This wasn’t a case of religious zealots snatching a girl away from modern medicine immediately. It was a slow, agonizing descent where science simply… stopped working.

According to the medical logs I was scanning, Anneliese had been poked, prodded, and scanned for years. In August 1969, Dr. Vogt and Dr. Luthy ran an EEG. The result? Normal. A clean brain scan. They guessed—hypothesized—that it was a form of seizure. So they put her on medication.

Dilantin. An anticonvulsant.

It didn’t work. The episodes got worse.

By 1973, the hallucinations started. While praying, she heard voices. Not the internal monologue we all have, but an external, auditory hallucination damning her to hell. She told Dr. Luthy about the “demon faces” she saw everywhere.

I pulled up the audio file labeled Medical_Review_1973. The doctor’s notes were clinical, detached. He noted that she smelled a foul odor. He called it an olfactory hallucination. But looking at the witness statements from her family and even unrelated neighbors, they smelled it too. That stench of burnt waste.

As I worked, transcribing the German audio into English logs, I noticed my own throat tightening. The air in the editing bay was dry, recycled AC, but a metallic taste coated my tongue. I took a sip of water, but the taste persisted.

The file progressed to 1975. This was the turning point. The medication was switched to Tegretol, a heavier drug. It did nothing but make her lethargic, yet the “seizures” evolved into violent frenzies. The behavior described in the court documents was nauseating.

She began eating spiders and flies she caught in the house. She licked her own urine off the floor. She destroyed every crucifix she could reach.

I opened a file containing photos of the evidence presented in court. A rosary, snapped into pieces. A wall with indentations where she had banged her head repeatedly.

Then, I found a witness testimony from her sister. It described Anneliese throwing her across the room “like a ragdoll.” Another account described Anneliese squeezing an apple with one hand until it exploded into fragments.

I looked at my own hand. I tried to imagine the PSI required to crush an apple into “fragments” with a single grip. It’s not just strength; it’s a complete disregard for the structural integrity of your own muscles and tendons. A hysterical strength usually reserved for mothers lifting cars off babies. Anneliese was doing it casually, while screaming obscenities.

The most chilling part of the rising action wasn’t the violence, though. It was the intelligence.

I loaded up the file Rite_Authorization_1975. Father Rodewyk, a Jesuit expert, had consulted on the case. He was the one who finally convinced the Bishop of Würzburg to authorize the Rituale Romanum—the Great Exorcism. This wasn’t a rogue operation. This was official, bureaucratic, stamped-and-signed paperwork authorizing a battle with the devil.

It was assigned to Father Arnold Renz and Father Ernst Alt.

I clicked on the first audio file from the actual exorcisms. September 24, 1975.

The waveform on my screen was a chaotic mess of red peaks. Clipping. Distortion.

I pressed play.

A low growl, guttural and wet, filled my headphones. It sounded like two voices speaking at once, layered over each other. One was high and strained—Anneliese. The other was deep, resonating from the chest cavity.

(German) “Judas… Nero… Hitler… Cain… Fleischmann…”

The voice was listing names. Identifying the entities inside her.

I paused the tape. Fleischmann? I quickly searched the name in the archive database. Valentin Fleischmann. A Frankish priest from the 16th century who had been disgraced, kicked out of the church for “bad behavior,” and allegedly beat a man to death. He was a local historical footnote, obscure, forgotten.

Father Alt had noted in his deposition that Anneliese—a girl with a high school education in the 1970s—could not possibly have known the specific details of Fleischmann’s life. Yet, on the tape, the voice spoke about his sins with intimate, hateful precision.

The knocking in my wall returned. Louder this time. A distinct thud… thud… thud.

My monitor flickered. The waveform of the scream froze on the screen, jagged and red, looking less like sound and more like a row of teeth.

Part 3

I shouldn’t have kept listening. It was 2:00 AM. The campus was dead. But the morbid curiosity—the same instinct that makes you slow down at a car crash—kept me glued to the chair.

I loaded the files from the final months. Spring 1976.

By this point, Anneliese had undergone nearly 60 sessions. 67 in total would be performed before the end. The photos from this period were difficult to look at. The healthy, pretty girl from 1968 was gone. In her place was a bruised, gaunt figure with black eyes and broken teeth.

The audio from these later sessions was pure torture. The screaming wasn’t just loud; it was desperate. But mixed in with the screams were moments of chilling clarity.

In one recording, the demon—or Anneliese, depending on what you believe—begins to bargain. Then it mocks the priests. The priests are praying the Rosary, their voices steady, rhythmic. The voice cuts through them, barking like a dog, then shifting into a deep, mocking baritone.

“The Rosary… it burns.”

I was typing the metadata for this file when the temperature in the editing bay dropped. I don’t mean a draft. I mean the kind of cold that hurts your sinuses. I could see my breath misting in the light of the monitor.

The audio file was playing. The priests were commanding the entity to leave.

(German) “Exorcizamus te, omnis immundus spiritus…”

Suddenly, the audio in my headphones cut out. Absolute silence.

Then, a voice came through. Clear. Unmistakable.

It wasn’t German. It was English.

“They are watching you.”

I ripped the headphones off and threw them on the desk. I spun around in my chair, expecting to see a security guard or a prankster.

The room was empty. The door was still locked from the inside.

I looked back at the screen. The audio file was still playing, the timer counting up, but the waveform was flat. There was no sound on the file at that timestamp. I had hallucinated it. I had to have.

I grabbed my water bottle, my hands shaking so bad I spilled it down my shirt. I needed to finish this. I needed to get the files backed up and get the hell out of there.

I skipped to the final entry. June 30, 1976. The last exorcism.

Anneliese weighed 68 pounds. She was dying. Her knees were ruptured from weeks of compulsive genuflecting (kneeling). She had pneumonia. She had a high fever.

On the tape, her voice is weak. The growling is gone. She sounds like a child again.

She whispers to her mother. “Mother, I’m afraid.”

Then, to the priests: “Please… absolution.”

I felt tears pricking my eyes. It was so senseless. A girl, wasted away to nothing, surrounded by men chanting in Latin while her body shut down from starvation.

But then, the tape continued. The priests stopped chanting. There was a shuffling sound. And then, one last sound from Anneliese.

It wasn’t a word. It was a sound of… recognition. A sharp intake of breath, followed by a low, vibrating hum that seemed to resonate through the digital file, through the computer speakers, and into the desk itself.

The lights in the archive room surged. Brighter, brighter, then pop.

Darkness.

I sat in the pitch black, the only light coming from the glowing power button of the monitor.

And then I smelled it. Overpowering. Suffocating.

Burnt feces. And rotting meat.

It wasn’t coming from the tape. It was in the room.

I scrambled for my phone, turning on the flashlight. The beam cut through the dark. Dust motes danced in the air.

The knocking started again. Tap. Tap. Tap.

But this time, it wasn’t coming from the wall.

It was coming from the other side of the soundproof glass of the vocal booth—the small room directly in front of my desk.

I shone the light into the booth.

It was empty.

But on the glass, on the inside of the booth, there was a smudge. A greasy, opaque smear.

It looked like a handprint. A handprint with thick, distorted fingers.

Part 4

I didn’t save the session. I didn’t shut down the computer properly. I grabbed my bag and I ran. I ran up the three flights of stairs, past the security desk—startling the night guard—and out into the cool Boston night. I didn’t stop shaking until I was inside my apartment with all the lights on.

Anneliese Michel died the morning after that recording, July 1, 1976. The autopsy report stated she died of malnutrition and dehydration. Her parents and the two priests were charged with negligent homicide.

The trial in 1978 was a media circus. The “Klingenberg Case” became a battleground between faith and science. The defense played the tapes—the very tapes I had been digitizing. They wanted to prove the possession was real, that the “demons” were distinct personalities.

The court didn’t buy it. They brought in doctors who testified that the “possession” was a psychological result of strict religious upbringing and untreated epilepsy. They argued that the priests had reinforced her delusions, making her believe she was possessed, which led to her refusing food.

They were all found guilty. Sentenced to six months in jail (suspended) and three years of probation. A slap on the wrist for a dead girl.

After the trial, the German Bishops’ Conference declared that Anneliese was not possessed. They retracted the validation of the exorcism. They closed the book.

But I never went back to the archive to finish that job. I emailed my resignation the next morning.

Here is the thing that keeps me awake. The thing that science couldn’t explain in 1978, and I can’t explain now.

The handprint on the glass in the booth.

I know I was tired. I know the mind plays tricks when you are isolated and scared. But the next day, I got a text from the other archivist, the guy who had to go in and clean up my mess.

“Hey Mark, weird prank leaving the booth dirty. But how did you get that smudge on the inside of the glass? The door was locked and you don’t have the key for the booth.”

I didn’t reply.

I deleted the text. I formatted my hard drive. I tried to forget the sound of that growling voice listing the names of the damned.

But sometimes, when I’m trying to sleep, just as I’m drifting off, I feel a pressure on my chest. A heavy, pinning weight. And I smell that faint, acrid scent of something burning.

I pray it’s just sleep paralysis. I pray that Anneliese was just sick. Because if she wasn’t… if those tapes were real… then the thing that killed her didn’t die with her in 1976.

It’s still out there. And it knows I listened.