One of Korea's most spine-chilling urban legends has to be the story of the 'Red Mask' or 'Bunhongsin.' It's about a cursed theater mask that drives anyone who wears it to madness or death. The tale goes that an actress during the Japanese occupation wore it for a performance and, consumed by the mask's evil, killed her entire troupe before taking her own life. Now, the mask supposedly appears in abandoned theaters or dark corners, waiting for its next victim.
What makes this legend so gripping isn't just the gore—it's the cultural fear of unresolved colonial trauma and the idea of art turning monstrous. Modern retellings often tie it to K-dramas like 'The Cursed' or horror webtoons, where the mask symbolizes suppressed rage. I once stayed up way too late reading variations of this story, and let's just say... I avoided mirrors for a week.