Crime novelist Leo Leitner tries to overcome his creative crisis on Gran Canaria. His lively roommate Bianca puts him on the trail of a real crime. The imprisoned millionaire fraudster Horst Rogner is said to have hidden his loot on the island. The money is being chased by prosecutor Anja Krüger, inspector Eva Kollek and police chief Miguel Gonzales. For Leitner, all three are suspects.

The mayor would like to snatch the Moosburg Castle under the nail so that he can move his club "Paradies" and the "Damen" there. But the Reverend has other plans: he wants to build a children's home in the castle. Only the rightful heir, the young pediatrician Dr. Seefellner can help him.