Oldboy (2003)

Synopsis

A drunken businessman is abducted off the street and locked in a single room for fifteen years, with no explanation and no contact with the outside world. When he is suddenly released, he sets out to learn who imprisoned him and why — a hunt that spirals into one of cinema's most notorious revenge stories. Park Chan-wook directs with operatic style, dark humor, and a now-legendary corridor fight, building toward a twist that has fueled debate for two decades.