Writer
Harry Palmer era un reputado hombre de negocios. Casado con su hermosa esposa nada parecia que pudiera enturbiar su vida. Pero una "aventura amorosa" de su mujer, da como resultado una venganza por parte de Harry, la cual, se le escapara de su control.
Writer
A young businessman, out joging one night, sees a beautiful woman undressing in her bedroom window and he is compelled to return every night to watch her, until one night he witnesses a murder in the same apartment and soon becomes the prime suspect because of a variety of circumstances evolving from his voyeurism.