A love letter to a very special shared living arrangement starting from grade 5. Since the father left the family and the brothers have moved out, Alex and his mother feel truly lost in their huge old apartment. Moreover, they are soon running out of money. But Uncle Bernd has a brilliant idea: the empty rooms will be rented out, and from now on, Alex will share his home with a variety of guests. Sales representatives of joke items, artists, and businesspeople - they all ensure that there is always something happening, and sometimes it even feels like a zoo. Wolfram Eicke vividly and humorously narrates the rather peculiar people who come and go at the guesthouse "Affenstall," while simultaneously advocating for an open and tolerant approach to others.