Hubie and Burt, two ratty-looking mice, spot some cheese inside and break into a home. (Actually, they just push the window up.) They enjoy the cheese while lounging at the fireplace. "Claude the Cat" them spots them, chases them, but then spots the open window and shuts in. The cat then runs back to its bed and gets out several medicines, saying "I hope I can't catch a cold with that draft, or pneumonia, or athlete's foot!
The cat obviously is a hypochondriac and the mice quickly catch on to that. They tell Claude he looks terrible, so the cat is shaking and feeling worse by the minute. They tell him he looks green, so the cat turns green. They tell him he looks purple, so Claude turns purple. One of the mice says he looks "plaid," so the cat turns plaid. "Don't overdo it," admonishes the smarter of the mice. You get the picture - it gets sillier as the mice pretend to be doctors and operate on the poor Claude, who thinks he's getting worse by the minute.
They put a sign on the cat's butt: "Danger! Men At Work: Excavating!" (Don't ask). As a hypochondriac myself, I was highly offended at this cartoon and the stereotype it portrayed of us poor suffering slobs.
Anyway, the mice don't really operate but pretend to, and the cat faints at the thought. The rest of the cartoon is Claude's dream and it is bizarre - and the best part of the seven minutes - with an even-stranger ending.
Overall, a very odd animated short.