An unusually twisted lecturer gets a tile in the head and altogether changes character to what is perfectly happy - but also horny.

Everyone is a potential victim of the eternally sour high school teacher Tvebo's bile: Students, colleagues and not least his wife, all suffer from stomach acid. Right up until one day he gets a roof tile in his head and gets totally changed. Tvebo is now a living man and womanizer, and his new personality is attracting a lot of attention in the small town.—Danskfilmskat