Seeing that Tom has a well stocked fridge, hungry alley-cat Butch pops on a bonnet and climbs into a cot to pose as a poor hungry waif; Tom takes pity on the 'baby' and brings him into his home, but as soon as Tom's back is turned, Butch is in the fridge helping himself to a large joint of ham. Chaos ensues as Jerry also wants the ham.
Boy, Tom sure is dumb in this cartoon, believing the fully grown alley-cat Butch to be a baby. If he hasn't got the smarts to see through the ruse, I say that he deserves all the trouble he gets. As far as this T&J caper goes, it's pretty standard stuff throughout, with very few really memorable gags and not nearly enough creative pain dished out to the characters (although, having said that, the scalding bath that Tom prepares for Butch looked nasty
maybe Tom had figured out what was going on after all and wanted to punish Butch with third degree burns).