An actor's wife is bedridden with a strange illness and is tended to by a doting nurse. As the nurse is going through the mail with the wife, they discover a letter for the actor from a woman who says she loves him, and agrees with him that in order for them to be together, they will have to get rid of his wife. The wife then receives another letter from a friend warning her to be careful, not to trust anyone, and that the plot to kill her is not just a fantasy.

Some great twists in this episode.