Kazuyuki Kuga aspires to become an actor. He auditions for the lead role in a theater company's next work. Among the 300 people who take part in that audition, only 7 people are selected for a final audition round. Kazuyuki Kuga is among the final 7 participants. These 7 people then travel to a snowy mountain villa and stay there for 4 days to take the final audition. By the director's orders, all contact with the outside world are not allowed. Soon, the participants begin to disappear one by one.
A seemingly unremarkable man called “Mouse” is caught by the police. In exchange for his freedom, he goes undercover, infiltrates a drug ring, and arranges a fake deal, but an unexpected turn of events occurs.
