Plot
This is a South Korean action thriller adapted from a Japanese manga of the same name. After being released from jail, an obnoxious drunk named Dae-Su (Choi Min-sik) is abducted from the street. He wakes up in a sealed hotel room, where he remains for 15 years. While in the cell, he's drugged, has little to no human contact, and only has a TV to keep him company. He also learns his wife has been murdered, and he's been framed as the prime suspect. When he's randomly released, Dae-Su is given the opportunity to track down his jailor and seek revenge.
Reactions
"I gasped and clutched my hair. My cat was very concerned." —u/SevereResolve726
"One night, I watched Oldboy while my then gf was asleep. I got to the end and let out an audible gasp at that bit. I woke my gf up, and [let's just say I] wasn’t very popular [that night]." —u/BarryCleft79