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.

Eun Sol, a newbie prosecutor, holds hands with Baek Beom and Cha Soo Ho to investigate a murder case of a conglomerate’s son’s wife. Sol and Beom speculates that the husband beat her, who was pregnant, to death. However, Beom tells her never to trust the corpse itself because once a body decomposes, new scars may show up, and existing wounds may vanish.

Eun Sol is shocked to see Baek Beom stand as a witness for the conglomerate son, Oh Man Sang. Beom testifies that the cause of Kwon Hee Kyung’s death is not assault. Meanwhile, due to the lack of evidence, the trial is postponed for three days. Will Sol be able to find more evidence to prove that Man Sang is the killer, or will Man Sang be set free?

Although the trial seems to be leaning in the defendant’s favor, Sol does not lose heart and begs Beom to analyze the heels that she wore to the crime scene. The results show that on the carpet where Hee Kyung was found, traces of pills are found. Sol immediately believes that Man Sang has replaced the contents of Hee Kyung’s pills into those that would kill her.

Sol goes on her 99th blind date and is not impressed with the low self-esteemed mama’s boy. To his mother who has been watching them the entire date and has handed her three million dollars in order to convince her to marry him, Sol tells her that her son should learn how to grow his self-esteem and figure out his own life. Meanwhile, Deuk Nam’s three sisters find out that their brother’s body is missing and goes berserk.

Suspecting the late Jang Deuk Nam’s death to be a murder case, Sol indicts his three sisters and his wife, Choi Hwa Ja, for murder. Meanwhile, while talking with Kang Hyun regarding the murder case, Hyun tells Sol not to trust Baek Beom too much. When she asks him whether there was a conflict between him and Beom, he just warns her to be careful.