Unfaithfully Yours (1984)

A composer suspects his wife of cheating. He plots to kill her and frame it on her lover.

Director: Howard Zieff

Cast: Dudley Moore, Nastassja Kinski, Armand Assante, Albert Brooks, Cassie Yates, Richard Libertini, Richard B. Shull, Jan Tríska, Jane Hallaren, Bernard Behrens, Leonard Mann, Estelle Omens, Penny Peyser, Nicholas Mele, Benjamin Rayson, Art LaFleur, Magda Gyenes, Fred Franklyn