10 Most Disturbing Movie Endings Of All Time

Following his kidnap and imprisonment for 15 years, Dae-su Oh embarks on a bloody mission to find those responsible. Along the way, in the midst of the brutal carnage, he meets and falls for a young lady, Mi Do, in what feels like a slightly out of place sub-plot. However, in a sickening twist, at the end it is revealed that this was all part of his captors' plan and that she is, in fact, his daughter whom he never got to see grow up.

It's saying something that in a film as violent as Oldboy, it’s this taboo incest bombshell that stands out as being the most disturbing moment. It is also somewhat tragic, as for an audience we have watched them fall in love only to have our expectations completely turned on their head.

Following the reveal, no one is rooting for them to live together happily ever after and yet we’ve become invested in their blossoming romance. It leaves you conflicted and disorientated, making Oldboy a movie that you wont forget in a hurry.

Oldboy was remade by Spike Lee in 2013 but this latest venture into violent vengeance failed to garner the same shock value that the original provided, which has anchored it as a cult classic and the best of Chan-Wook Park's revenge trilogy.