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.

Surrounded by bullies nearly all his life, Harold Kelp, an ambitious but inexperienced inventor and the grandson of Professor Julius Kelp, still has a lot to learn about science. When one of his experiments backfires, Harold enrols in his grandfather's science academy, only to fall in love with beautiful Polly McGregor. To impress her, Harold gets his hands on a potent serum, and just like in The Nutty Professor (1963), a drastic transformation occurs. Is history repeating itself?—Nick Riganas