By chance, Watabe (Goro Kishitani) meets subordinate worker Nakanishi (Kyoko Fukada) at a batting center. A friendship occurs which leads to a heated love affair. Watabe then learns that Nakanishi is the prime suspect of a murder case that occurred 15 years - the murder of her father's ex-lover. The statue of limitations for that murder case is soon to expire ..

A series of suspicious death cases take place. All the victims were terminal patients. Detective Hayato Inukai (Gou Ayano) and Detective Asuka Takachiho (Keiko Kitagawa) investigate the case. Through their investigation, they learn of a person known as "Dr. Death." He performs euthanasia by request. Meanwhile, Detective Hayato Inukai’s daughter Sayaka requests the help of Dr. Death. Sayaka suffers from a severe kidney disease.