sentences:  A documentary film, "Hinterkaifeck - Symbol des Unheimlichen" (1981) is based on the Leuschner book; Hans Fegert adapted the book, directed the film (shot on Super 8, with sound), and was the cameraman.The film was shown regularly in Ingolstadt.Ten years later, Reinhard Keilich's play "Hinterkaifeck – Deutschlands geheimnisvollster Mordfall" (1991) was produced, and at the same time Kurt K. Hieber produced another documentary, shot on location, and shown on television and in local cinemas.