The film is dedicated to the surgeon V.P.Demikhov. VP Demikhov is walking through the park. Snowy road. Winter storm. Snowing. Winter survey of the building and the entrance to the anatomical building. Evening shooting: the lantern is swinging in the wind. V.P.Demikhov is preparing for an operation, performing an operation to transplant a second head to a dog from a donor dog. Narrated text commented on the progress of the operation. [IN. P. Demikhov] behind the scenes speaks about the importance of the experiment and the problem of the survival of dogs after surgery. Demikhov's assistants are present at the operation. A dog with two heads drinks milk from a saucer.