In a Glass Cage

In "In a Glass Cage," Ángelo (David Sust) becomes the caretaker for Klaus (Günter Meisner), a former Nazi doctor who was paralyzed after attempting to kill himself and is now confined in an iron lung. Angelo's true aim is revealed as he manipulates and tortures Klaus, forcing him to relive his own sadistic crimes against children, including raping and murdering young boys. As the story unfolds, Angelo's actions become increasingly violent and sadomasochistic, ultimately leading to Klaus's demise at his hands.