At the very beginning of the summer holidays, Wilka was lucky: she was invited to star in a real film! But her friends, Larik and Petich, have no time for cinema. A suspicious film producer catches their attention. What is he looking for in the old manor where the film is being filmed? Is it really just a prop for filming? And what is hidden behind the door, the key to which the guys find on a deserted path in the park? While conducting the investigation, friends become film actors, use an “elephant tape recorder” and even end up on... the Field of Miracles.