Fortune Telling Collection - Comprehensive fortune-telling - Is the Korean sewer movie based on a true story?

Is the Korean sewer movie based on a true story?

Yes

According to the Himalayan website, Sewer is the most horrible crime film in Korea. According to real cases, the victims are all girls who go home alone at night. This is a film made only for criminals, a masterpiece based on real events, and an unparalleled suspense masterpiece in Korean film history.