Tamayama plays Tachiki Nobuo, the assistant editor of a monthly literature magazine while Sasaki plays his wife Aya who used to be a model for a magazine and works at an old folks' home after getting married. Although the couple seem to be having a happy life, Aya is actually suffering from sexual dependency. She would wear red clothes which she usually doesn't wear whenever the weather is sunny and these are the days when she has the uncontrollable urge to sleep with other men. While trying to put on a pretense in front of Nobuo, Aya tries to seek treatment and goes for counselling. However, things start to get out control when Aya has sex with a man she comes to know from a dating site and he turns out to be Nobuo's colleague.
Tamayama revealed that as he doesn't have a lot of experience acting in love stories, he feels shy about looking Sasaki in the eye but will try his best to play the role of Nobuo who loves Aya very much. On the other hand, Sasaki said that Aya is a very challenging role for her and she hopes to be able to achieve new heights in her acting career through this character.
Filming is currently in progress.
Sources: Eiga.com / Oricon / Sanspo / Nikkansports