Just released from prison and in need of fast cash, a very short thief named Cal (
Marlon Wayans) and his dimwitted partner Percy (Tracy Morgan) steal a gigantic diamond from a posh jeweler. A dog gets in the way, the cops show up, and Cal drops the rock into a nearby purse, belonging to Vanessa (
Kerry Washington). To recover his loot, Cal pretends to be a baby and so moves in with Vanessa, her husband Darryl (
Shawn Wayans), and her father Pops (John Witherspoon). As an "infant," Cal tries to nurse on a visitor's buxom breasts, hits Darryl in the crotch repeatedly, steals Pops bacon and pancakes, and suffers the insertion of a rectal thermometer, but he's also agile enough to play tackle football, drive a car while chased by screeching police cars, and beat up the thugs who come to take the diamond from him. At night Cal sneaks into Vanessa's bed and has sex with her (off camera); the next morning she compliments Darryl for his new energy and creativity.