Giovanni Quintella Bezerra, 32, was arrested after he was allegedly caught on camera violating a heavily sedated patient in Brazil.
An anesthetist who allegedly raped a woman during a C-section may have attacked two more victims on the same day.
The incidents took place in Hospital da Mulher in São João de Meriti, Rio de Janeiro.
Delegate Barbara Lomba, an investigator on the case, said, "I've never seen anything like it."
The alleged victim told her family she thought she was hallucinating at first. The hospital staff got worried over the number of drugs Bezerra gave his patients, and that's when they added a secret camera to his office.
They were shocked to learn what the doctor did to his unwilling, unconscious patient for around 10 minutes.
The staff told the police that the doctor had two similar procedures on the same day, which is why he is a suspect in three rapes in one day.
In the second operation, employees said Giovanni "wore an open cloak on himself, widening his silhouette, and positioned himself in a way that also prevented anyone from seeing the patient from the neck up."
Though the C section does not mean that woman is entirely unconscious, the women who went to Giovanni said they were completely unconscious.
A woman said:
"The only thing I remember from the surgery is his voice. He kept talking softly in my ear, it bothered me. He asked if I was okay."
The witness said, "Giovanni, still positioned towards the patient's neck and head, started, with his left arm bent, slow movements back and forth. From the movement and the curvature of the arm, it looked like he was holding the patient's head towards his pelvic region."
The mothers were so drugged up that the staff was surprised they could not hold their newborns.
Clovis Bersot Munhoz, president of Cremerj Clovis Bersot Munhoz, said the alleged attack was "absurd."
The Health Foundation of the State of Rio de Janeiro and the Secretary of State for Health said:
"We inform you that an internal investigation will be opened to take administrative measures."
"The Hospital da Mulher team is providing full support to the victim and her family."
"This behavior constitutes a crime, which must be punished in accordance with the legislation in force."
The police praised hospital workers for filming the alleged crimes. Horrifying footage allegedly shows Dr. Bezerra placing his penis in the woman's mouth in an assault lasting ten minutes.
The doctor, awaiting trial, faces 8 to 15 years for rape.