Swapped In Secret (2023)

Phil (Seth Gamble) arrives home one day to find a strange girl, Tracy (Jane Wilde), claiming he's her parent. Phil is shocked and confused but grows even more disturbed when his wife, Nancy (Charlie Forde), seems to be playing along. It's revealed that Nancy orchestrated a swap with another household so that Phil could live out his daddy/stepdaughter porn fantasies, which she discovered in his internet history...