A group of six criminals, strangers to each other, are hired by an organized crime boss to carry out a diamond heist. The men are given code names based on colors – Mr. White, Mr. Orange, Mr. Blonde, Mr. Pink, Mr. Blue, and Mr. Brown – to maintain anonymity even amongst themselves. The heist is meticulously planned, but the execution is a disaster, resulting in a bloody shootout with the police. The surviving members of the crew suspect that one of them is an informant, but they do not know who.

The surviving thieves regroup at an abandoned warehouse, their designated rendezvous point, to piece together what went wrong. The situation quickly escalates as tensions rise, accusations are thrown, and alliances are tested. Mr. Orange is severely wounded, leading to a series of flashbacks that reveal the backgrounds and motivations of each member of the crew. The group's cohesion unravels as paranoia takes hold, and the criminals confront the possibility of betrayal within their ranks, all while trying to salvage whatever they can from the botched heist.