Wei Yuan has been a security captain for three years and is treated as trash by everyone. The landlord pressed for rent, his colleagues laughed at him, and even the dog barked at him. That night he dreamed of the screams of his comrades again. When he woke up, there was a text message on his phone: They are coming for you. He thought it was another scam text message and didn't take it seriously. When he went to work the next day, a man in a black trench coat stood at the door of the security booth and handed him a photo. The photo was of him and his comrades, but three of the five people in the photo were dead. The other one is the man himself. He said, my name is Chu Zhen, the captain of the criminal police brigade of the city bureau. The death of your comrade was not an accident. Wei Yuan pinched the photo, his finger joints turned white. Three years. It's time to settle accounts.