Yuko Tanaka, who "married into" the Tanaka family, a family running a poultry farm, led a modest life despite being mistreated by her sister-in-law, Satomi Tanaka. One day, Saki Watanabe, the mistress of Yuko's husband, Ryosuke Tanaka, applies for a live-in employee position at the poultry farm. Unaware that Saki is her husband's mistress, Yuko, who conducts the interview, decides to hire her. Thus begins a strange cohabitation, including the husband's mistress.

From a first feature director Koichiro Oyama who worked as an assistant director for Hideo Nakata's "Kaidan" (2007), the film is about a man with crime records living with his own son without knowing their real relationship. Starring Ikkei Watanabe "Suspect X", the film won Yubari International Fantastic Film Festival's Audience Award, whose last year's winner was a smash hit zombie film "One Cut of the Dead".