Tras el cristal

In a Glass Cage Spanish Tras el cristal is a 1986 Spanish film written and directed by Agust Villaronga and starring Gnter Meisner, Marisa Paredes and David Sust. The plot follows an exNazi 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. With its theme mixing Nazism, pedophilia, torture and homosexuality, the film was highly controversial. To celebrate the 30th anniversary of the Teddy Awards, the film has been selected to be shown at the 66th Berlin International Film Festival in February 2016.

Some years later, Klaus is being taken care of by his wife Griselda and their young daughter Rena in a large gloomy house in the country. Griselda is unhappy in Spain and, overwhelmed by the task of looking after her husband, she secretly wishes he would just die. Then a young man with a scarred face named Angelo appears, offering his services as a nurse to help take care of Klaus. Griselda takes an instant dislike towards Angelo and does not want to hire him, but Klaus insists that he should stay. In reality, Angelo has no actual nursing skills, which Griselda soon discovers, but even then Klaus refuses to get rid of him. It is revealed that Angelo was one of Klauss victims and that, in the past, they had a sickening, sadomasochistic relationship. Angelos true aim is revealed to be not only to take his revenge out on Klaus, but to ultimately take his place. Angelo reads Klaus passages from the diaries he stole in which the doctor describes, in detail, how he tortured his young victims. Recreating what Klaus did to him, Angelo strips and masturbates in front of Klaus glass cage. He then calls Griselda. She tries to run away, but he kills her, hanging her from the rails of the second floor.The next day, Angelo fires the housekeeper, taking over the house with Renas help. Rena is not disturbed by her mothers absence, as Griselda was abusive towards her. Rena feels far more comfortable under Angelos care. Angelo continues with the doctors experiments, bringing young boys to Klaus in his iron lung. Angelo lures a child to the house with the excuse of needing help with carrying the groceries, and ties him to a chair. In front of Klaus, Angelo kills the boy by injecting him through the heart with a needle filled with gasoline. A second boy is then brought in and Angelo kills him by cutting his throat after making him sing. Fearing that Angelo is out of control and that his life and Renas are in danger, Klaus tells his daughter to run away to the near village with a messa

Source: Wikipedia