Serpico (1973)
An honest New York cop named Frank Serpico blows the whistle on rampant corruption in the force only to have his comrades turn against him
Seconds (1966)
An unhappy middle aged banker agrees to a procedure that will fake his death and give him a completely new look and identity one that comes with its own price
Lovely But Deadly (1981)
A cheerleader goes undercover to fight drug dealers because her brother ODd and her fellow cheerleaders are hooked