This drama is adapted from Wang Shuo's novel of the same name, "Half Flame, Half Seawater". Hong Kong is a city full of sin. Wang Yao (played by Liao Fan) is one of the shameless pimps. The most common thing he does is to pretend to be a cuckolded husband to blackmail and cheat on his wife. One day, Wang Yao, who didn't care about anything, met the innocent girl Lichuan (played by Mo Xiaoqi). Wang Yao originally thought that Lichuan was like other ignorant girls and could be at his mercy, but Lichuan's stubbornness far exceeded his imagination and deeply attracted him. The two fell in love, but often tortured each other and gradually went further and further. Finally, in a police encirclement and suppression operation, Wang Yao was unfortunately arrested, and Lichuan committed suicide by cutting her wrists in the bathtub in a white wedding dress. After serving eight years in prison, Wang Yao walked out of the prison gate and broke into the residence of Lichuan's mother (played by Bao Qijing) with a gun...