The Dark Secret

This film (drama)Also known as비밀，is aSouth KoreaProducerwomen sex，At2023Released in year 。The dialogue language isKorean，Current Douban rating6.7(For reference only)。

A brutal serial murder case, with all evidence pointing to the killer who died ten years ago. One night, a murder occurs in a bathroom, and detective Dong-geun discovers fragments of a diary dated ten years ago on the body—"This will also pass." Dong-geun learns that the only piece of evidence related to the case is a note that is part of the diary of "Young-hoon," who served in the military with the victim and committed suicide 10 years ago. Dong-geun suspects that the culprit is "Seong-hyun," an executive at a pharmaceutical company and the mastermind behind the military bullying at that time, but since he also died in the same serial murder case, the investigation gradually falls into a maze. Meanwhile, while delving deeper into the investigation, Dong-geun discovers that "Young-hoon" was a friend from his student days, leading the case to take a whole new turn with forgotten memories...