As the victim's stepmother investigates, the killer begins to target another young girl.

[2] Based on Kang Full's eponymous webtoon,[3][4] the film sold over 2.43 million tickets, becoming the highest grossing film among the movie adaptations of Kang Full’s works.

A man, whose identity is known, kills his own neighbors ― including a middle-school girl ― living in his building, and continues to stay there even after committing the grisly murders.

Another wants to avoid attention from the police, as he has just five months left before his statute of limitations runs out.

Some simply do not want to meddle without evidence, clinging to their daily routines.