I'm a Cyborg, But That's OK

A girl who thinks she is a combat cyborg checks into a mental hospital, where she encounters other psychotics. Eventually, she falls for a man who thinks he can steal people's souls.

I'm a Cyborg, But That's OK is a 2006 drama romance movie directed by Park Chan-wook, starring Kim Byeong-Ok, Park Byeong-eun, Lim Soo-jung. It holds an IMDb rating of 6.9/10 from 27,396 votes and runs 1h 47m.