Who is Mary Maloney from Collected Stories and what is their importance? Collected-Stories English & Literature Mary Maloney | Collected Stories

Mary Maloney is the pregnant wife of a policeman. Her husband comes home from work one day and tells her he is leaving her. Suppressing her emotions, Mary asks him to stay for dinner anyway, and while he is sitting at the kitchen table, she takes a frozen leg of lamb from the refrigerator and bludgeons him to death. She then goes to the local grocery story to pick up a few items to provide herself with a cover story, and puts the lamb in the oven. When police detectives arrive, she serves them the lamb as they ponder what the murder weapon could have been.