Pick one category for the following text. The options are - company, educational institution, artist, athlete, office holder, mean of transportation, building, natural place, village, animal, plant, album, film or written work. Tras el cristal - Tras el cristal (English: In a Glass Cage) is a 1987 Spanish film written and directed by Agusti Villaronga and starring Gunter Meisner Marisa Paredes and David Sust. The plot follows an ex-Nazi sadistic child abuser who is now paralyzed and depending on an iron lung to live. A young man who comes to nurse him was one his former victims years before. The film was inspired by the history of Gilles de Rais.
Film