Kabukicho Love Hotel (2014)
2014A married female detective, a musician girlfriend, and a prostitute girlfriend check in at a Kabukicho love hotel to cheat on their partners.
Actors: Tomorowo Taguchi
Bastoni: The Stick Handlers (2002)
2002A wife decides to be in a porn film so that she can have sex onscreen with a porn actor, who is her ex-boyfriend, and maybe win him back. Plus, the porn actor’s wife is also a porn actress and they have no problem with each other fucking other people onscreen as long as there are no emotions involved. But what if emotion suddenly crops up?
Disregarded People (2013)
2013A husband masturbates at home, all alone, while his wife is having sex with their boss at the fish factory where they are both working at. Also, another wife cheats on her husband with a co-worker.
The Eel (1997) aka Unagi
1997A husband comes home purposely early from his fishing trip to catch his wife fucking her lover.
M (2006)
2006A wife becomes a prostitute due to some screwed-up mental issue that involves her past.