Cheunggansoeum

What would you do if your neighbor didn’t stop making noise? People think of Si-U Seo as a nice guy, but when his upstairs neighbor refuses to stop making noise, he gradually becomes consumed by his desire for revenge despite the fact that his neighbor is dangerous. Si-U will stop at nothing to ruin his neighbor’s life, even if it means burning his own life to the ground.

(Source: WEBTOONS)