Here are some more movies with twisted endings. Just like the previous entry, there will be MAJOR SPOILERS ahead for these movies, so proceed with caution.
The protagonist was having an affair with his daughter – Oldboy (2003)
Man, when Koreans decide to go dark, they go DARK. Oldboy tells the story of Oh Dae-su, an alcoholic businessman who neglects his family. After being released by the police following an
