Episode 1

A masked man disrupts a peaceful afternoon, stabbing everyone in sight. The police later find the suspect dead, making it an open-and-shut case. However, Detective Soma has his misgivings when Shuji, the lone survivor, gets attacked again. Told to survive just ten more days by a mysterious man, Shuji is forced to depend on Soma as they are pushed into a shadowy world neither are prepared for.