An inebriated mouse with a throbbing head takes a priceless diamond, thinking it's a soothing piece of ice. Two policemen, one of them a lunkhead, are assigned to recover the missing jewel.

Sylvester Cat and his orange feline friend, Sam, are rummaging through trash cans for food in the evening on a waterfront when they spot a mouse. They agree to share the little rodent for breakfast the next morning, while during the night each tries to snag the mouse for himself.