To impress a beautiful girl, Harold Kelp, the grandson of professor Julius Kelp, who created a potion to transform his personality, gets his hands on his grandfather's secret elixir and unleashes his destructive alter ego, Jack.
To impress a beautiful girl, Harold Kelp, the grandson of professor Julius Kelp, who created a potion to transform his personality, gets his hands on his grandfather's secret elixir and unleashes his destructive alter ego, Jack.
Drake Bell , Jerry Lewis , Tabitha St. Germain
Paul Taylor
The Weinstein Company , Mainframe Entertainment
as Harold Kelp/Jack Love
as Professor Julius Kelp / Buddy Love
as Robin
