The Smile Has Left Your Eyes

A detective thinks about quitting his job. He takes on a female university student murder case that was disguised as a suicide. The detective becomes obsessed with solving the case. He has a young sister and she meets a man. The man does not remember when he was little. He is not a good person, but she has sympathy for him. The detective tries to push the man away from his younger sister. The detective suspects that the man is somehow ...