Mary Maloney, Roald Dahl's character and the title of his story, "Lamb to the Slaughter," are telling components of this murder scene. Mary is the very controlled and convincing wife, who kills her husband, after learning that he is about to leave her. If Mary were to be charged with her husband's murder, she would be found Sane and Guilty of Murder in the First Degree.
<Tab/>Mary realizes that her marriage is in trouble, and has known it for some time. She knew this day would come, she has resolved it in her mind, and that is why she is able to conduct herself in a "tranq…