The story of “Lamb to The Slaughter” is about a woman named Mary who is married to a man named Patrick. They have a son together named Tommy. One night, while Patrick is at work, Mary decides to make him a lamb for dinner. However, when Patrick comes home, he is angry and tells Mary that he is leaving her. Mary then kills him with a leg of lamb and hides his body in the freezer. When the police come to investigate, they find the lamb in the freezer and assume that Patrick was the one who killed Mary.