- Set in the Unnatural Death Investigation Laboratory, or "UDI Lab" for short, each episode features exhilarating mystery-solving and lighthearted human drama with one unified theme – to bring change to the living world by thoroughly investigating suspicious death.
Misumi Mikoto is a pathologist at UDI (Unnatural Death Investigation) Lab. She can't stand neglecting unnatural deaths and believes there must be a truth behind the deaths. Team members that work with her are autopsy doctor Nakado Kei, recorder Kube Rokuro, clinical test technologist Shoji Yuko and UDI director Kamikura Yasuo.
They work on unnatural death cases and try to reveal the truth behind the deaths.