The Big Bluff (1955)

When scheming fortune hunter and erstwhile Latin lover Ricardo De Villa learns that a wealthy but sickly widow has terminal heart disease, he seduces and marries the vulnerable millionairess. Playing the part of a faithful and doting husband, he carries on a torrid affair with sexy exotic dancer Fritzi Darvel while avoiding the suspicious eyes of her jealous bongo-playing husband. When his wife's condition seems to go into remission, the impatient De Villa decides on action that will hasten her seemingly inevitable death.