Calvin (Marlon Wayans), a midget criminal, is just released from jail. He immediately teams up with his buddy Percy to steal a huge diamond. They steal it successfully right from the store (full of people who do not notice anything), but as they try to get away things go wrong, and Calvin is forced to get rid of the diamond by dropping in into an unsuspecting young woman's purse. The criminals track the woman, Vanessa (Kerry Washington), and find out that she is married; her husband Darryl (Shawn Wayans) desperately wants children, but Vanessa is more excited about her recent promotion. The criminals decide to use Darryl's longing to have a child in order to retrieve the diamond. Calvin gets dressed up as a baby and left on the young couple's doorstep.
Implausible? Yes, but that's the minor problem with this movie. The major one is how vulgar and disgusting this flick is. Bathroom humor abounds: farting in the tub, shoving a cookie down one's pants and then letting another man eat it, etc., etc. Calvin's posing as a baby gives plenty of room for diapers, breast-feeding, and such. His lusting after women and even once having sex with Vanessa completes the picture.
The only interesting point about this movie is how the regular-height Marlon Wayans was turned into a midget, which is shown in the extra features visual effects. A midget actor's body was used and combined with Marlon's head, creating Calvin.