A tragicomedy that happened to three couples who switched partners, turning sex into a simple game to break off marital relations, gripped by a painful mood!
| Actor | Role |
|---|---|
 Aoi NakajimaMachiko Hara | Machiko Hara |
| TTatsuya HamaguchiNishino | Nishino |
 Hirokazu InoueShinpei Hara | Shinpei Hara |
| AAkiko KamiYoung Woman | Young Woman |
 Yasuko MatsuiToyoko Tsukui | Toyoko Tsukui |
 Akemi NijoMachiko in Flashback | Machiko in Flashback |
 Toshihiko OdaYoshio Takagi | Yoshio Takagi |
 Naomi OkaDesigner | Designer |
 Mikiko SakaiFemale Doctor | Female Doctor |
 Nagatoshi SakamotoMasafumi Tsukui | Masafumi Tsukui |
| KKunio ShimizuMan of the Toilet Paper Exchange | Man of the Toilet Paper Exchange |
| KKatsuhisa ShinodaMamoru Tsukui | Mamoru Tsukui |
| EEriko TaniguchiSalesclerk at Yakitori Store | Salesclerk at Yakitori Store |
 Yuri YamashinaRumiko Takagi | Rumiko Takagi |
| HHagiwara JitsujiroMan | Man |