Kasimir uses a hollow couch to infiltrate houses. Once inside, he secretly films the owners' lives. A few days later the couch is picked up again, with Kasimir inside: "Delivery Error". He delivers the tapes to the brain surgeon Dr. Liebermann, who is trying to learn how to feel human emotions. While Kasimir provides him with more footage of further break-ins to prove his love, the doctor, unimpressed, prepares an awake surgery in his cellar for a young musician. Broken by unrequited love, Kasimir begins to deviate from Liebermann's dogma: never intervene in what happens in front of the camera. An unforgivable breach of trust for Liebermann and so he decides to determine Kasimir's fate.