Li Hongqi, a righteous Northeast police officer, accidentally discovers the existence of local bullies involved in pornography. As the investigation deepens, a gang of local tyrants who control and oppress women with drugs emerges and openly provokes the police. Li Hongqi has decided to fight to the end, and is bound to eradicate this "pornography tumor".

An ordinary couple can't afford the rent of apartment because of unpaid wages. A rich second generation man owe a lot of money to a gang boss. The poor three meet and arranges a fake kidnapping case.