Marvin (Mark Wiig), who looks quite feminine, is a professional killer who kills people without blinking an eye. Countless people died at his hands. It stands to reason that he should earn a lot of money, but he is always short of money, because his mistress Sandra took the money given by Marvin behind Ma Wenquan's back to raise a beautiful boy, while Marvin's fiancee Pamela took all Marvin's savings to pay off her father's debts. Marvin's gang partner Sisco (played by Lu Zaimeng Phillips) secretly plans to kidnap the daughter of a wealthy Japanese businessman behind the back of the underworld boss Perry, but Marvin has to risk his life to join in order to get more money for his girlfriend and mistress. But what no one expected happened. Keiko, the daughter of the Japanese businessman, was Pei Duanzhi's adopted daughter, so Pei Duanzhi sent a large number of troops to hunt him down. In order to protect himself, Sisko put all the responsibility on Marvin. Not only that, he also led a large number of Perry's men to hunt down Marvin. After Sandra and Pamela left Marvin, Marvin and Keiko both fell in love. Marvin, who is physically strong, can solve Sisco with his skill, escape Peiduan's pursuit, and travel around the world with Keiko.