Rent Mulholland Falls (1996)

Mulholland Falls tells the story of four no-nonsense cops, nicknamed the "Hat Squad", who formed an elite unit of the Los Angeles Police Department in the early 1950's. Both feared and revered, they made their own rules to enforce the law but when a routine murder investigation case involves one of their own, it forces the "Hats" into a confrontation with a power greater than organised crime: one that could bring down the squad itself...