When called to a crime scene, unconventional forensic pathologist Raphaël Balthazar clashes with the new, no-nonsense chief inspector, Hélène Bach, but they must work together to solve the double homicide of a public prosecutor and his wife.

Reeling from the realization that the person who murdered his wife could still be at large, Balthazar arrives at the gruesome scene of a beaten man with his face torn off.

Bach calls on Balthazar to examine a young woman found dead in a truck, but the deceased's body is completely frozen and a piece of evidence connects her to a seemingly unrelated case.

While at the movie theater, Balthazar is called to help a woman who appears to have been stabbed, but after realizing the blood she's covered in belongs to someone else, he races to find the other injured person.

Balthazar examines a dismembered corpse found in the river, but when the body parts don't match up, he realizes there's another victim.

Balthazar arrives on the scene of a horrific car accident and finds the body of a woman a few yards away, but he determines she died several hours earlier and her corpse was in one of the car trunks.