A mouse in a yellow hat accidentally eats rum cake, thinking it's cheese, and becomes drunk. The next morning, he wakes up with a hangover and is further tormented by the sounds of construction nearby. In a misguided attempt to alleviate his headache, he uses the Sunflame Diamond, a valuable jewel, as an ice pack. Two incompetent policemen are dispatched to investigate the "theft" of the diamond, only to be outsmarted by the mouse, who has the jewel tied to his head.
The Mouse on 57th Street
A quick-witted mouse in a bright yellow hat embarks on a comically inebriated adventure after mistaking a decadent slice of rum cake at a bakery for a colossal piece of cheese.