A wealthy and tyrannical school headmistress dies after consuming a sandwich, and her former friend and servant, Susan, becomes the prime suspect. As Detective Joe Russo investigates, he befriends Susan and invites her to assist in the inquiry, sparking her husband's concerns about her growing closeness to the detective.
Menu for Murder
The ruthless leader of the school commission, Joanne Mayfield, inspires dread and animosity among the other women. Her reign of terror is cut short when she dies suddenly after consuming a sandwich at a social gathering, with Susan, the person who served her, becoming the main suspect.