Joon Ho won’t go away, Ji Ahn is scared of Sun Ho, but holds hands with Hyun, Eun Hyeok feels guilty, and Eun Bok gets caught by the rookie.
A surprising murderer turns up, Sun Ho chooses Hyun, Ji Ahn walks into Joon Ho’s lair, and Hyun finally goes for the direct approach.
Hyun shows Sun Ho his bedside manner, Ji Ahn receives a questionable gift, and Eun Hyeok puzzles over who is Joon Young.
Everyone wants to kill or torment Hyun, who can barely keep his eyes open. Lucky for him, Ji Ahn is around to wake him up.
A new murder puts the team back to work, Hyun cracks the code of his brother’s messages, and Hyun gets a message back from Joon Young.
Three possible psychopaths team up to save Ji Ahn, but she only kisses one of them.
A new serial killer appears to save Hyun from his uncomfortable thoughts, and Ji Ahn and Eun Hyeok walk into the wrong garage.
Sun Ho takes a special interest in Ji Ahn, while Hyun descends into darkness in the hunt for his father’s killer.
Hyun and Ji Ahn bond over amusement park rides, Sun Ho tries to make friends, and everyone is still under suspicion.
Hyun gets too personally involved in a case, Joon Ho comes over for dinner, and Ji Ahn doesn’t know if she’s feeling attraction or suspicion.