Shin Karino is an unpopular manga writer and he is single. He lives in an apartment complex that has a rule forbidding children from living there. One day, Shin Karino's doorbell rings. When he opens his apartment door, he sees a small boy. The boy is 5-year-old Kotaro Sato. Kotaro Sato tells Shin Karino that he moved into the neighborhood. Shin Karino makes a weird face, because of the rule of his apartment complex. Kotaro Sato says that he lives by himself. At first, Shin Karino is annoyed by Kotaro Sato, but residents of the apartment building, including Shin Karino, become attached to Kotaro Sato.
Adapted from the manga series "Kotaro wa 1-ri Kurashi" (コタローは1人暮らし) by Tsumura Mami (津村マミ).
Muto (Jun Kunimura) and Ikegami (Shinichi Tsutsumi) are two gangsters who hate each other, but Ikegami is in love with Muto's actress daughter Michiko (Fumi Nikaido). Meanwhile, Muto attempts to make his wife Shizue's (Tomochika) dream come true which is to have their daughter appear in a movie.
Koji (Gen Hoshino), who is just a passerby, is mistaken for a movie director. Koji then requests to independent film director Hirata (Hiroki Hasegawa) to cast Michiko as the leading actress in his film. Their situation soon goes completely wrong.
1. Screenplay for "Why Don't You Play in Hell?" was first written by Sion Sono 15 years ago as an action film.
The film revolves around two men, Mutoh and Ikegami, who are fierce enemies who feel nothing but hatred for one another. However, Ikegami unexpectedly falls in love with Mutoh’s daughter, aspiring actress Mitsuko.
Mutoh wants to celebrate the release of his wife Shizue from prison by giving their daughter her debut, so he decides to produce his own movie specifically to that end.
Soon, a movie buff named Koji is hired to direct after being mistaken for a filmmaker and an actual indie film director named Hirata is recruited to help.
Complicating matters even further, Ikegami soon injects himself into the chaos of his hated rival’s production.