Don't Ask Where I Come From (1972)

Chun-bok breaks into Sam-yeol's daughter's room intent on raping her, but instead rapes Yu-wol, the maid, who was sleeping there. Yu-wol gives birth to a son which her employers raise as their own but her boyfriend, Baek Do, takes Chun-bok's eyes in revenge. Years later, all these people are successful owners of private businesses, competing with eachother at murderous levels.