Build a movie plot around this: What is Daniel replacing at Farhad's shop? A lock
A:
A black man, Detective Graham Waters, speaks dazedly about the nature of Los Angeles and the need for people to crash into each other. A Latino woman in the driver's seat of the car, Ria, mentions they were hit from behind and spun around. She gets out of the car and goes to the cop and the other driver, an Asian woman. The two women blame each other for the mishap and make racial jibes. The Latina identifies herself as a detective.Waters gets out walks toward more police cars and a crime scene. Another cop mentions they have a body. Waters looks at something.The scene flashes back to "Yesterday."At a gun shop a Persian man Farhad and his daughter Dorri are buying a handgun. The shop owner gets upset with the Persians speaking Farsi and the two men quickly escalate into angry words. Farhad leaves fuming and Dorri selects a red box of free bullets as she takes the gun.Two young black men, Anthony and Peter, leave a restaurant. Anthony claims they were victims of racism and poor service, Peter laughs it off. Jean and Rick Cabot, a white couple, walk down the sidewalk. Jean notices the two black men and clutches Rick's arm. Anthony takes it as a racial slight, but then the two young men suddenly draw handguns and carjack the Cabots' black Lincoln Navigator. Peter places a St. Christopher statue on the dashboard.Detective Waters and his partner Ria arrive at a crime scene. A uniformed cop tells them there was shooting between two drivers. The surviving white man is identified as an undercover cop named Conklin. The dead driver in a Mercedes is also a cop, a black man named Lewis. The investigators are unsure who started the shooting in the road rage incident.At the Cabots' house Jean is still upset, and even though a locksmith is already changing the door locks, she wants it done again the next day. Jean loudly claims the locksmith will sell the keys and they will be robbed again. The locksmith, Daniel, overhears and leaves two sets of keys on the kitchen counter as he leaves. Rick is talking to his assistants....