Baek Beom has worked as a forensic doctor for 10 years. He has a bad personality, but he is excellent with his work. Baek Beom does not open his mind to other people. Eun Sol is a rookie prosecutor with a warm heart. She has a bright personality and she comes from wealth family background. The forensic doctor and prosecutor work together to solve cases.

A dogged detective in pursuit of a faceless drug kingpin gets a much-needed break when a survivor from a mysterious factory explosion decides to help.