When methodical killer-for-hire Claude (Vince Edwards) agrees to assassinate a witness scheduled to testify against his mobster boss, he is unnerved to discover that his target is Billie Williams (Caprice Toriel), a female nightclub singer. Forced to alter his killing methods to accommodate the entertainer's erratic behavior, Claude must also face two mafia goons suspicious of his true motives. Irving Lerner directs this cool noir thriller.