The Killer Is on the Phone (1972)
A wife who has amnesia can’t remember her current husband but clearly remembers fucking her lover.
Did She Cheat or Not?
Thinner (1996)
A guy is cursed by a gypsy and he has to pass the curse to someone so that he will be freed from it. The one he will choose will die, of course. So he passes it on to his wife, whom he suspects of cheating on him.
Head Above Water (1993) aka Hodet Over Vannet
Lene’s ex-lover drops by while her husband is out on an overnight fishing trip. They have a drink and in the morning he is lying fully naked on her bed while she wakes up on the couch fully clothed. Did she fuck him last night?
The Brown Bunny (2003)
A motorcycle racer meets up with his ex. While she’s giving him head, he reminds her of the time when she fucked two guys at a party when they were together.
Alipin (2003) aka Slave
A guy comes home and sees another guy coming out from his house. Inside their bedroom, he finds his girlfriend wearing nothing but her panties. Did she just fuck the guy?