20 years ago, an inexplicable mass suicide occurred in the millionaire Yang household, where the entire clan were hanged to their deaths at the exact same hour, place, and height. Only one member survived. To this day, the case remains unsolved. 20 years later, distant relative James inherits the Yang Mansion, moving in with his girlfriend Yo, a dancer who aspires to study in the U.S. To celebrate the engagement, they invite their friends -Yi Chen and Ah Tseng - to their new home and stay the night.
