Catfished (2017)

Evelyn's crush on her stepfather reaches a whole new level when she decides to pose as someone else online in an attempt at seducing him. But, as her stepfather falls hard for her fake online profile, Evelyn's left wondering whether he'll feel the same way when he finds out the girl he's lusting for - is actually her.

Unfortunately the movie Catfished is not yet available on HBO Max.