Mary Moloney is sitting in the living room, sewing, waiting for her husband to return home from work.
Her husband gets home from work and tells Mary that he is leaving her. She doesn't realize that he is serious, so she isn't mad.
I'll have some potatoes and beans, please.
The weapon is right under our noses.
Mary decides that they are going to have a lamb leg for supper, and goes downstairs to grab it from the freezer.
Mary comes upstairs with the lamb leg, and her husband tells her that he doesn't want food because he is going out. She then strikes him in the back of the head with the leg and kills him.
Mary acts as if she never killed her husband, and goes to the store to get more food for supper.
Mary comes home, and realizes what she had done. She calls the cops, and they start to investigate. Mary offers them some of the lamb she used to kill her husband, and they ate it. While the detectives are eating the weapon, they say that if fells as though the weapon its right under their noses.