Li Shunjie, a police officer in the Singapore Crime Squad, is a conscientious man. His family is harmonious and happy, full of joy. His mother (played by Zheng Peipei), his wife Xiaomei and his sister Xiaoqin are all proud of him. However, a case related to the gang brought him into an irreversible situation. Ah Shun and the undercover were discovered by the gang, resulting in the undercover being killed on the street, and he and his wife were also killed at home. The news of the police officer's murder caused an uproar in the society, and also left an incurable pain in the hearts of Mrs. Li and Xiaoqin. On the seventh day after the death of Ah Shun and his wife, which was the traditional night of returning souls. Xiaoqin suddenly disappeared, and the gangsters who killed Ah Shun were killed one after another. It turned out that Ah Shun's soul attached to Xiaoqin's body and launched a ruthless revenge on the violent and arrogant. Karma is not wrong at all. The night of killing is destined to be bloody...