An original medical murder mystery surrounds an unknown killer coccus (bacteria), that leaves no trace in the victims body, which enables it to be used as the perfect weapon to kill. Fujimaki Tatsuomi is a pathologist working at the Pathlogy department at Meikyo Medical University Hospital. Hes looked down upon by the other staff around him, and his relationship with Maho his wife, a former nurse, has cooled down.Watch drama online for free.