Xiaowei disappeared, and the divorced couple began to search for their son's whereabouts. With a photo of Xiaowei's injury, they found Wang Hao, the young man who was carrying the secret. Following the clues left by Xiao Wei, we discover step by step the unknown side of Xiao Wei; Xiao Wei still has not come back, but every moment everyone lives, it is as if Xiao Wei has never left.
After a bizarre bus accident, Ming Ze awakens from a coma to discover that his mind now shares the consciousness of four fellow passengers – all of them dead; all of them suspects in a serial kidnapping and murder case. To prove his own innocence, Ming evades capture by the police and tries to track down the killer’s only surviving victim. But in order to unmask the murderer’s true identity, Ming must first fight the monster within himself.