Bun, an excellent medical examiner, examines the body of a woman who seems to have committed suicide and concludes that it was a homicide. However, that night, an unknown assailant threatens to write her report as a suicide, and the prosecutor's best friend who consulted her disappears. He suspects the young man who first discovered it and the cram school teacher Tan, but he says that he will search for the culprit together... [ Adapted from a Thai BL novel "Manner of Death" which was also was adapted into a Thai Drama series with the same title]