Julius Kelp is an ugly chemistry teacher with no personal life. One day he creates something incredible! An elixir that transforms him into a totally different man, Buddy Love. He is very successful with women, and one of his students (Stella Purdy) falls in love with him. Of course nobody knows that this charming, cool guy is in fact Julius Kelp. Everyone is very excited with Buddy, but there is a problem. The elixir's effect doesn't last very long...