After a weird bus accident, Ming Ze awakens from a coma to find that his thoughts now shares the consciousness of 4 fellow passengers – all of them lifeless; all of them suspects in a serial kidnapping and homicide case. To show his personal innocence, Ming evades seize by the police and tries to trace down the killer’s solely surviving sufferer. However in an effort to unmask the assassin’s true identification, Ming should first combat the monster inside himself.