Résumé: How can anyone be lonely in a city as big as Los Angeles? In part one of "Love for Sale," a California congressman is murdered and robbed by a lady of the evening, which is front-page sleaze and scandal just the way the media likes it, but with one frightening twist: Cordelia has a vision about the congressman just before he dies -- and the prostitute who killed him wasn't human! Now it's time to track down the inhuman assassin and take care of business