Baek Beom, a medical examiner, performs an autopsy on a young victim. Cha Soo Ho, a detective, watches the procedure from behind a glass. He mentions the disappearance of the victim’s underwear and skirt and tells Beom that the victim was raped and murdered. However, after a short while of examination, Beom tells him that it is a car accident disguised as rape and provides medical evidence.

A female victim is taken to the hospital with seven stab wounds on her body. She says that her boss tried to kill her, however, the suspect denies all the charges against him. Prosecutor Eun Sol is in charge of the case, and at the trial, she encounters Doctor Baek Beom who comes to the court to provide his expert opinion on the stab wounds.