"Boy" Eddie (chris payne) is the son of the gangster Joe cabot (lawrence tierney). In order to rob a jewelry store of diamonds, Eddie called six strangers to carry out the operation and asked them to use color as the code name. They are Mr. Bai (), Mr. Orange (), Mr. Jin (), Mr. Fan (Steve Busemi), Mr. Brown and Mr. Lan. In order to keep secret, he stipulated that these six people were not allowed to disclose their private information.

Despite strict secrecy, they were ambushed by the police. Mr. Lan and Mr. Brown died on the spot, and Mr. Bai risked his life to take seriously injured Mr. Orange back to the agreed warehouse. On the way, Mr. Bai showed great trust and care for Mr. Orange and told him his personal name. In the designated warehouse, Eddie, the "good guy", Mr. Fan who buried the diamond and Mr. Jin who arrested the police arrived one after another, waiting for the distribution of the gangster boss Joe. While waiting, they carefully recalled the whole process of the incident and found that there must be a mole among the six people, otherwise the police would not arrive in time. After torturing the police arrested by Mr. King, they still failed. Just when they decided to burn the police, Orange pointed the pistol at Mr. Kim. Who is undercover? The situation is getting more and more serious, and a bloody contest has begun.