This is a very early Betty Boop cartoon. You can easily tell because Betty was originally very dog-like and evolved into the sex kitten we all know and love. Here, she sports long doggy ears and jowls that are a bit dog-like. However, by late 1931, these canine features would disappear completely and a year or two later, so would her boyfriend, Bimbo the dog—probably because having a lady dating a dog is just super-creepy!
In this installment, Bimbo has been told by Mom to stay home and watch his bratty (and very adult-like) baby brother. However, Bimbo would much rather hang out with Betty (and who wouldn't)—leaving the baby to get into all sorts of trouble and nearly kill himself on several occasions. All in all, a violent but funny cartoon with the usual insane sensibilities and great Fleischer animation that made Betty Boop's early films classics.
By the way, when Bimbo goes over to meet Betty, he casually mentions that Dad is angry because Mom has been spending time with the ice man—and they have an electric refrigerator. This is the sort of adult humor that makes you laugh but was pretty much eliminated when the new Production Code was enacted in mid-1934. As a result, her cartoons became a lot less interesting!