Yun Ji Hun is a headstrong and strict professional in his work as postmortem examiner, while Go Da Gyeong is an energetic and well educated, but clumsy newcomer in the National Forensic Scientific research institution, known as NFS. While working together to reveal the hidden truth behind the cases of death, they will encounter a multitude of political intrigues and backstage games in which not only their own department, but also the police will be involved. While risking their own careers and future, will they be able to reveal the truth they are seeking for?
They are both about the police and postmortem examiners working together to solve cases.
The male protagonists are lonely people, who had something dark happen in their past. Both men have a father-figure in an older postmortem examiner. The woman in both of their lives is younger and a somewhat careless colleague of theirs who follows them around like a puppy.