After setting up a raid on a bookmaking operation, Klein and his partner, George "Junior" Stemmons, are ordered to protect a witness in a probe into organized crime in boxing. Having been told by gangster Mickey Cohen that another crime figure, Sam Giancana, wants the witness dead, Klein throws the witness out of a high window and makes it look like an accident. Later that night, Captain Wilhite, of the corrupt Narcotics Squad, summons Klein to investigate a burglary at the home of J. C. Kafesjian, a drug dealer sanctioned by the LAPD.