In the Palm of Your Hand (1951)

Jaime Karin is an astrologer, fortune teller and a scam artist, who uses his wife who works in an elegant beauty salon, to find out information on future wealthy clients, through her he learns that a millionaire Vittorio Romano died shortly after learning of his wife's infidelity. Karin befriends the woman and learns that she and her lover murdered her husband, now the woman claims to love the astrologer and wants him to help her get rid of her lover.