A young girl and her new friend investigate a series of supernatural happenings in the Austrian children's film SUMMER WITH THE GHOSTS. Caroline departs from her home in Montreal to join her father a famous film director on the set of his latest film in Austria. When she arrives however she learns of a series of accidents and problems on the film set with everyone at odds to explain how they happened. Suspecting that someone means to sabotage the film she begins to investigate the ancient castle being used as the set. Along with her newfound friend Jakob she discovers that the film's difficulties may in fact have a supernatural cause.