Soft-spoken teacher Suzuki proposes to his girlfriend Yuriko on Halloween day. That night, Yuriko is one of many to die in a seemingly random act of violence at Shibuya crossing. The grieving Suzuki learns that the incident was in fact planned by a mysterious company. He quits his job and infiltrates the firm, only to discover that it produces illicit synthetic drugs. All hell breaks loose when the heir to the company throne is brutally murdered and Suzuki becomes the main suspect. On the run, he crosses paths with two deadly assassins and a team of mysterious avengers who could be pulling everyone’s strings. This gritty and heartbreaking portrait of today’s overloaded and violence-prone society is based on the bestselling novel.