Misa, a widow, spends her days masturbating to soothe her hot body. Yoshio, her stepbrother, peeks in and indulges in fantasies of her and Misato having intense lewd sex. Misa invites her sister Lila's sex friend, Haruo, who works at the dry cleaners, to dinner and has sex for the first time in a long time, climaxing like crazy. One day, Yoshio falls for Lila's trick and is drawn into an affair between Haruo and Misa, causing Misa to scream in pleasure during a threesome.