Story of the struggling chorus group "Yamada Osamu and the Hello Nights", who gain an unexpected new member in the young Ai, who pursues her dream of becoming a singer.
The dead body of Maki Tsujimoto, a popular stage actress, is discovered in a theater in Oji. After striking her in the back of the head with a bronze statue prop, the criminal laid the body on the floor and pointed a light at it, "directing" the crime scene as if it were a scene from a play.
A naked corpse was found that had its penis amputated on a heavy rainy night. As a result of an autopsy by a medical examiner (Naomi Oki), it was determined that the criminal was the same man as the unsolved continuous murder case since last month. Detective Yajima (Masato Furuoya) and Ishigami (Koh Takasugi) immediately start an investigation, but the case goes in a surprising direction.
