In the Palm of Your Hand (1951)
A con artist seduces the widow of a millionaire, only to learn she'd plotted with her lover to murder the late husband. A tense game of cat-and-mouse ensues—but who's the cat? adultery, infidelity, suicide, femme fatale, film noir, murder, betrayal, scam, psychic, astrology, body in a trunk, unhappy marriage
ETC.
