Crime thriller set in the 1940s and based on a series of serial murders. In the late 1940s, Martha Beck and Raymond Fernandez were America's notorious 'Lonely Hearts Killers'. Their lethal scam was simple; they would swindle and then viciously murder lovelorn war widows who would answer their personal ads in which Ray would describe himself as a sexy Latin lover. With Martha posing as Ray's sister, they milked elderly spinsters and widows of their savings and then viciously murdered them in a bloodbath of sexual frenzy. John Travolta and James Gandolfini play the two detectives assigned to track down the pair.