The eccentric professor Collins lives in a chaotic apartment, completely isolated from the world. When a model named Penny moves in next to him, he is immediately captivated by her. He begins to drill holes in her walls and ceiling, spying on her day and night. His obsession with Penny leads him into delusions and daydreams, as he loses himself in their shared life.
As time goes on, Collins becomes increasingly obsessed with Penny, constantly checking on her every move through his secret window. He even begins to imagine that she has feelings for him, leading to a series of bizarre fantasies and delusions.
One day, Collins realizes that his obsession with Penny is causing him to lose touch with reality. He decides to take a break from his secret life, but when he tries to leave, he finds that he cannot escape his addiction to Penny.
In a desperate attempt to break free, Collins takes an extreme measure: he sets fire to his apartment and runs away, hoping to be consumed by the flames. However, instead of being consumed, he is rescued by Penny, who had been watching him from her window.
Collins is devastated by the loss of his secret life and his love for Penny. He realizes that his obsession with her was not only unhealthy but also dangerous. From that moment on, he vows never to let his obsession with someone consume him again.