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!
中島葵
as Machiko Hara
浜口竜哉
as Nishino
井上博一
as Shinpei Hara
Akiko Kami
as Young Woman
松井康子
as Toyoko Tsukui
Akemi Nijo
as Machiko in Flashback
Toshihiko Oda
as Yoshio Takagi
丘ナオミ
as Designer
堺美紀子
as Female Doctor
坂本長利
as Masafumi Tsukui
Kunio Shimizu
as Man of the Toilet Paper Exchange
Katsuhisa Shinoda
as Mamoru Tsukui
