This one opens up in a different fashion than the other CBSRMTs. Remember how at the beginning there would be an audio excerpt from somewhere within the show before E.G. would say: "Our mystery drama..." In this case the excerpt serves to start out the show.

Karl Markheim is an evil man, so evil he's pretty much an over-the-top caricature. In this excerpt, he's celebrating the death of his great uncle "The bishop", who stands between him and a fortune he thinks he'll inherit. He vows to break every one of the ten commandments and indulge in every one of the seven deadly sins.

He proceeds in this show to do just that, fueled by the anger that his uncle left the bulk of his fortune to his church. He descends into depravity, and whenever he passes a mirror becomes accustomed to the image of Satan behind his shoulder (that only he can see) who constantly and silently taunts him.

This one has a somewhat interesting ending, much like "The hands of Mrs. Mallory". 