Liu Haiyang witnessed his best fellow at Police College, Song Chao, escaping away while his father is dying in the blood. Considered as the murderer, Song absconded from Harbin to Hainan. Three years later, Liu and Song come across with gun and bullets. Taking revenge on Song for his father’s murder, Liu also discovers a confidential affair between his wife and Song… but none of Liu and Song realizes they have been shrouded in a mist of conspiracy from the very first. What is waiting for them in the darkness?