>>211732419I might be getting my movies mixed up but I think its old-boy. Which is some ancient korean kino where a dude takes a picture of two gooks hooking up in high school but secretly they were brother and sister and the sister thinks their incest is exposed so she kills herself. to get revenge, the brother kidnaps and murders the people he thinks is involved including the mc. He locks the mc up for decades in a hotel room and then sets it up so the mc can escape. After he escapes, he is then lured into a relationship wtih a random young woman who aproaches him for seemingly no reason (she is paid to). The woman is actually his own relative. I cant remember if shes his daughter or his long lost sister. The badguy basically enginers tricking her into fucking her own dad/brother? and since he hasnt had pussy in 10+ years he goes for it too... only to learn the horrible truth at the end of the movie that hes been doing the incest oh no how terrible hes just like the villian now.