The Mirror Has Two Faces (1996)
A shy, middle aged professor enters into a romantic but non physical relationship with an unlucky in love colleague
Back to the Wall (1958)
A wealthy industrialist discovers his wife is having an affair and decides to exact revenge by blackmailing her under an assumed identity
Crime Does Not Pay (1962)
A husband tries to kill his wife using the plan he saw in a film But real life is not a film