Cheaters(2007)

Cheaters is a South Korean film that follows Seok-ho, a married playboy juggling affairs with Ji-yeon, a photographer, while obsessing over Chae-young, a college student he believes to be virtuous. When Chae-young proves far less innocent than she appears, Seok-ho's carefully constructed world begins to unravel. Complications deepen when his shy best friend Young-su develops feelings for Ji-yeon, unaware of her involvement with Seok-ho. As desire and deception tangle the four characters together, their hidden agendas and true natures emerge, exposing the gap between public facades and private desires. The film explores infidelity and self-deception with dark humor and romantic intrigue.