In Los Angeles, Cooper, Jason Miller, is a “key-man” (fence) for a local crime boss, running a network of warehouses that stash stolen and illicit goods. He hopes to seal a deal for a new block of storage units, bribing local realtor Elias Bart Burns to broker a pact with city officials to transfer the warehouses. Elias tells Cooper that he needs more time, so Cooper gives him a week with an implicit threat should he fail. Carl John Hillerman orders Cooper to fix a boxing match after their resident fixer Paulie Lou Frizzell failed to extract a win. Carl meets with Paulie, who admits he’s lost his touch and wants out of the criminal underworld. Cooper volunteers to take the assignment and informs the boxer Tonozzi Mark Gordon that if he doesn’t take a dive, Paulie will be hurt. Tonozzi reluctantly agrees.
After a surprise birthday party, Cooper is taken by Carl and his bodyguard Bobby Richard Evans to one of the prospective warehouses, where he is ordered to finish the deal by Saturday. Carl introduces Turner Bo Hopkins as his protégé in the underworld. A restless night follows as Paulie arrives with news that Tonozzi won the fight. Desperate to save face, Paulie begs Cooper to help, but Cooper suggests he leave town until he can smooth things over with Carl. Cooper visits Elias at a barbershop to close the warehouse deal, but Elias demands another $15,000 for bribes. Cooper agrees to pay an additional $10,000, yet Elias questions whether Cooper truly has the authority to do so, hinting that Cooper may be on his way out. Cooper then meets Carl and delivers the weekly payoffs, but as he steps into the elevator to leave, Bobby joins him and boasts that he killed Paulie. Enraged, Cooper brutally beats Bobby, breaking two of his ribs.
Hoping to ease the tension, Cooper and Turner drive to Carl’s office, where Turner is now serving as Carl’s driver after Bobby’s hospitalization. Inside, Turner slips away to the bathroom, giving Cooper a chance to slide a gun from Carl’s desk and tuck it under his coat. Turner returns and asks questions about Cooper’s days as a carnival barker, but Cooper stays tight-lipped and heads outside just as Carl arrives. Carl authorizes the extra $10,000 for the warehouse but warns that Cooper better have a definitive answer by Saturday. He also chastises Cooper for the beating of Bobby, reminding him that the syndicate relies on his precision as the “computer” and cannot afford a breakdown.
Seeking a reprieve, Cooper and his girlfriend head to a cabin in the woods to unwind, but Sarah notices wet footprints and discovers the gun is missing from a drawer. After a careful search reveals no intruder, Cooper replaces the locks and buys a shotgun. He phones Elias from a nearby hotel only to learn Elias never checked in. Back at the cabin, Turner arrives again, insisting on a clear warehouse decision, but Cooper deflects, saying he’ll call Carl once he has an answer. Sarah presses for details, but Cooper keeps saying it’s “business.” With no telephone in the cabin, he goes to a bait shop to call Elias’s hotel and learns Elias never arrived. He returns to the cabin and finds Turner waiting; Cooper vows to contact Carl himself once the decision is made and sends Turner away. When Sarah demands transparency, Cooper remains distant, admitting that new players want his job and that without this work he feels worthless. In a moment of rage, he calls her out, but she slaps him, and he responds with a punch, explaining that the world he inhabits now depends on his ability to hold this fragile power.
As the tension thickens, Cooper learns that Elias never checked in and that the warehouse deal has fallen through; Carl already knows and won’t back down. He sends Sarah on a train to Las Vegas, promising to join her later, then confronts Carl in a restaurant and warns that he’ll kill him if the contract isn’t removed from his head. Carl retorts that the mob cannot afford to lose their “key man” and that they will find other warehouses if necessary.
Back at home, Turner ambushes Cooper with a gun. The ensuing struggle leaves Cooper mortally wounded but still dangerous; he manages to brutalize Turner and strangles him to death before collapsing from his injuries. The film ends with Cooper’s exhausted, final breath, a stark reminder of how far the pursuit of power and control can push a person inside a ruthless criminal machine.
