Big fat slob 'Uncle Buck', played by John (eats-a-lot-of) Candy, visits the sane members of his family for a week in order to baby-sit two cute kids (Gaby Hoffman and MacCauley Culkin) and a pretty but snobby teenager (Jean Louisa Kelly). The shenanigans begin when Buck makes breakfast and then tries to sleep in a bed two sizes too small for his blimp of a body.
Mostly dull, but peppered with two or three funny scenes including Buck trying to get a word in edge-wise on the telephone with his angry girlfriend (Amy Madigan) and his meeting with a very disgusting clown.
Candy looks like he weighs 600 pounds.