Seto plays the role of an ordinary housewife Tanuma Yuriko who lives with her husband, two children and mother-in-law. One day, her peaceful life is shattered when her husband Kazuo (Omi Toshinori) confesses to her that he had an affair and killed his lover Saori (Nishiyama Mayuko) who was the wife of his friend Kusumoto Masafumi (Ishiguro Ken). In order to protect her family, Yuriko decides to help her husband conceal his crime and stops him from surrendering to the police. Yuriko's mother-in-law will be played by Kino Hana while Itaya Yuka will play Ito Michiko who had a grudge against Yuriko in the past and pesters her with the intention of destroying her. Kazuo's subordinate Kuroki will be played by Komoto Masahiro and Morioka Yutaka will play the police detective who wants to solve the murder case.
Ishiguro and Itaya both commented that the filming process has been very enjoyable for them so far but in the case of Omi who has to play a murderer, he was hoping that the filming will end soon because he has to play an emotionally-unbalanced character due to loss of appetite and being unable to sleep and even lost 7kg to look convincing. As a result, he can't joke around while on set and doesn't even eat the bentos and snacks during the filming.
Sources: Oricon / Eiga.com