If you loved Oldboy, try Decision to Leave
A bridge between a film you've already seen and one most people haven't. Decision to Leave has roughly 6.6× fewer votes than Oldboy — it's a deeper cut, not a mainstream recommendation. Here's what they share, and what the second one does that the first one doesn't.
What they share
Both films are directed by Park Chan-wook, and they both carry the foreign gem, mindfuck mood tags, and they sit in Mystery / Thriller territory. If that's the register that drew you to Oldboy, the second film will land in a comparable space — through a different lens.
What Decision to Leave is
A mountain peak in South Korea, rain-soaked rocks, a lone figure falls. A detective's eyes meet a widow's gaze, a tangled web of clues and desire. Park Chan-wook's precision makes the mystery feel eerily intimate.

