At 40 years old, Totò is a rising boss of Neapolitan organized crime, while Rosetta is a little girl in fifth grade. One day, Totò gets a bullet straight to his chest. At that very moment, Rosetta takes a nasty fall off a swing and hits her head. They are both rushed to the hospital for surgery and fall into a coma, but when they eventually wake up, something feels very different. Big and scary mafia boss Totò is now in the body of a sweet little girl who loves ballet, and little Rosetta finds herself trapped in a gangster's body.