A working-class housewife is sexually unsatisfied by her husband. When she seeks extramarital relationships, her affairs are discovered by a brothel-owner who then blackmails the woman into working as a prostitute for her.
Apartment Wife: Affair in the Afternoon a.k.a. From 3 to Sex is a 1971 Japanese film in Nikkatsu's Roman Porno series. The first film in this successful new direction for the studio, it was directed by Shōgorō Nishimura and starred Kazuko Shirakawa.