All the nurses assigned to the comatose patient began to get pregnant, until the doctor installed a hidden camera.

Part 1

By the fifth pregnant nurse, the hospital stopped talking about coincidences and started locking doors.

Santa Aurelia Hospital in Mexico City was one of those places where the rich went through private emergency rooms and the poor through desperate recommendations. It had gleaming floors, a small chapel, new equipment, and hallways where everyone pretended not to hear the rumors. But for months now, on the night shift, no one wanted to go near room 412-C.

There was Santiago Duarte, 29, a firefighter from the Iztapalapa station, a hero to some and a curse to others. He had fallen into a coma after entering a burning building in the Doctores neighborhood to rescue a girl trapped on the fourth floor. The girl survived. Santiago fell amidst smoke, glass, and concrete. Since then, he had been immobile for more than three years, his eyes closed, his skin pale, the constant beeping of the monitor marking a life that seemed to refuse to end.

Her mother, Doña Elvira, would arrive every Sunday with fresh flowers and a bag of sweet bread that no one ever ate.

“My son can still hear,” she said, straightening the sheets with trembling hands. “Don’t treat him like he’s dead.”

Dr. Rafael Salcedo, the neurologist in charge of the case, always responded with a professional calm that was already beginning to break down.

—Mrs. Elvira, we are doing everything medically possible.

But what was medically possible did not explain what was happening.

First there was Mariana, a married, serious nurse and mother of a six-year-old boy. She cried in the third-floor bathroom when she found out she was pregnant. She swore her husband had been working in Monterrey for months and that they hadn’t been together since before his last trip.

Then came Lucía, single, reserved, almost always assigned to the long early morning shifts. Then Fernanda. Then Sofía. All of them had cared for Santiago in ward 412-C. All of them had worked night shifts. All of them had spent hours by his bedside while the hospital slept. And all of them said the same thing: there was no man, no explanation, no memory that could justify it.

The gossip turned to poison. In the cafeteria, some assistants whispered that the nurses were lying to cover up affairs. At reception, someone said that Santiago was a punished saint. A stretcher bearer swore he saw a blue light coming from under the door at 3:40 a.m. The head nurse demanded silence. Management demanded discretion. The nurses’ families demanded answers.

The worst scene occurred when Doña Elvira heard the rumor.

She stormed into Dr. Rafael’s office, clutching the rosary tightly in her fingers.

—They are using my son to cover up dirty deeds.

—Nobody is accusing Santiago, ma’am.

“My son can’t even move one hand! What kind of hospital allows them to make up such things?”

Rafael didn’t know what to answer. Because, deep down, the question that haunted him was worse: what if they weren’t making it up?

When Valeria Robles, the fifth nurse, entered his office with a positive result in her hands, her face distraught and her voice broken, Rafael felt something inside him sink.

“Doctor, I haven’t been with anyone,” she whispered. “I swear on my mother’s life.”

—Valeria, we’re going to repeat the studies.

—I already repeated them. 3 times. I’m pregnant.

He looked at the paper. Then he looked at the closed door. It was no longer a clinical case. It was a scandal waiting to explode.

That same night, after the administration ordered him to “protect the hospital’s reputation,” Rafael did the one thing his ethics forbade and his fear demanded. He went alone into 412-C, turned off the main lights, and placed a tiny camera inside the ventilation grille, pointing directly at Santiago’s bed.

The patient didn’t move. His chest barely rose with mechanical assistance. The monitor blinked red, constantly, almost mockingly.

Rafael came out with freezing hands.

Before closing the door, he heard something.

It wasn’t a voice. It wasn’t a blow.

It was the soft sound of breathing behind him, even though Santiago was the only person in the room.

The next morning, before dawn, Rafael locked himself in his office, connected the camera’s memory card, and began to watch. For hours, nothing. Only machines, shadows, and the nurse on duty dozing in a chair.

Until the clock struck 3:42 am

The light flickered.

Santiago’s body opened its eyes.

And then, something identical to him began to rise from his chest.

Part 2

Rafael stepped back so fast he knocked his coffee cup onto the desk, but he didn’t take his eyes off the screen. The figure emerging from Santiago’s body was neither flesh nor a complete shadow; it seemed made of blue smoke and electricity, with the same firefighter’s face, the same strong arms, the same small scar above his left eyebrow. Nurse Valeria slept sitting up, exhausted, her head tilted toward the window. The apparition approached without touching the floor. There was no visible violence, no human gesture, only a presence leaning over her as if searching for something within her breath.

Valeria trembled in her sleep, a tear slipped down her cheek, and Santiago’s monitor began to flash with impossible brain activity. For 17 seconds, the room was filled with a pale glow. Then the figure returned to the body, Santiago’s eyes closed, and everything remained the same. Rafael replayed the video eight times. Afterward, he reviewed previous nights and found the same thing with Sofía, Fernanda, Lucía, and Mariana. Always between 3:37 and 3:44 a.m. Always with the blue light. Always with the red monitor flashing like a heart outside the body.

When he called the police, his voice sounded like a man who had just peered into an open grave. In less than 24 hours, ward 412-C was sealed off. Management cited “electrical failures,” but officers entered wearing gloves, carrying black boxes, and with pale faces. Doña Elvira stood in the hallway and screamed that no one would take her son away like a monster. Valeria’s family arrived as well, and her brother tried to hit the hospital administrator, accusing him of covering up abuse. The nurses were placed on mandatory leave. They were offered money, therapy, and transfers.

Also, confidentiality agreements. Some signed out of fear. Others because their families were destroying them with questions. Mariana was kicked out of her house by her husband. Lucía stopped answering calls. Sofía lost her mother to a heart attack after a neighbor humiliated her during Mass. Valeria, on the other hand, began to dream of Santiago. Not as a threat. Not as a lover. As a lost man who stood by her bed, staring at the door, as if trying to prevent anything else from entering. The genetic tests made everything worse: the pregnancies were normal, the babies healthy, but there was no recognizable paternal profile. There was genetic material, yes, but it didn’t match any known human database.

The police classified the videos as interference. The hospital moved Santiago to an isolation ward. Rafael received an anonymous call at midnight, a curt voice ordering him to forget what he had seen. That same night, while reviewing the file one last time, he discovered an old note about the fire: Santiago hadn’t rescued one girl. He had rescued five. And before falling, neighbors swore they heard him shout that “something” was still trapped upstairs.

Part 3

Rafael understood too late that 412-C hadn’t been the origin, but the gateway. He searched for the fire’s survivors and found five young women, all born months after that night, all daughters of mothers who claimed to have been touched by an inexplicable calm when Santiago rescued them. The girl the newspaper had shown as the sole survivor was only the first; the other four had been pulled out through the smoke before the cameras arrived. Santiago, half-conscious, had returned to the building one last time because he heard cries from the floor above.

There he found not children, but an old woman locked inside, a local healer whom several neighbors called crazy. She died in his arms, but before she did, she placed a hand covered in ash on his chest and told him that whoever saved lives on that fateful night would not return whole. Rafael didn’t believe in curses, but he believed in the facts: each pregnancy had begun after a nurse tenderly cared for Santiago, talking to him, combing his hair, defending him from the doctors who already treated him as an empty shell. It wasn’t desire. It wasn’t punishment.

It was an impossible form of continuity, one life trying to escape another. When Santiago died six weeks after his transfer, the clock in the isolation ward stopped at 3:43 a.m. Doña Elvira didn’t cry at first; she only kissed her son’s cold forehead and asked for forgiveness for having defended him from the women who were also victims. The hospital tried to close the case with a statement, but Valeria broke the silence before a judge: she didn’t accuse anyone, she didn’t ask for money, she only demanded that the children be born without shame.

The babies arrived healthy. Too calm. They stared, as if recognizing rooms they had never been in before. No one cried between 3:30 and 4:00 a.m. At two years old, Mariana’s son pointed to a picture of Santiago on a Day of the Dead altar and smiled before saying a word no one had taught him: “Papa.” That destroyed some and saved others. Mariana hugged her baby again without asking for explanations. Lucía left the city and opened a small clinic in Oaxaca. Valeria visited Doña Elvira every November, bringing flowers for Santiago and sweets for an altar where there was no longer shame, only a luminous sadness.

Rafael quit medicine with three sentences and disappeared toward the coast of Veracruz. Room 412-C was converted into a storage room, then an office, then nothing. No one wanted to occupy it. The red monitor, although unplugged and put away, continued to flicker some early mornings. The technicians said humidity. The guards said something else. They said that if you stood alone in front of the door before dawn, you didn’t feel pursued. You felt watched. As if someone on the other side were still counting lives, hoping that none would be lost in the darkness.