The gnomes Pinkeltje and Pinkelotje are visiting Dick Laan, the writer of the books about them. In a meanwhile, two assistents of professor Ludwig von Cleve found where the other Pinkels live and kidnapped some important Pinkels. Professor Ludwig von Cleve puts them in a doll house to expreiment on them. Dick Laan, Pinkeltje and Pinkelotje made up a tricky plan to rescue the captured Pinkels.
Sylvia Sommer is a pop singer who travels to the Antilles to rest. She is mistaken for her doppelganger, who tried to get diamonds from a sunken ship. Through this case of mistaken identity Sylvia goes from one adventure to the next.
