The film shows the possibilities of filming using the blue screen method, which has wide staging and trick capabilities and provides effects that are difficult to achieve with other filming methods. Actor's scenes in which the following tricks are demonstrated: the disappearance of the head, legs, body of the hero; movement of individual body parts along the park alley and the subsequent joining of parts into the body of a person walking along the alley. Actors V. Sokolov, O. Efremov (namesake of the famous actor Oleg Efremov) and V. Ilyichev took part in the scenes. Combined footage shot in the blue screen at Petrodvorets: girls dancing in a stream of a fountain, on the clouds, on the surface of a pond and disappear into the pond. The laboratory of the Lenfilm film studio, which houses the precision printing equipment, which allows performing all technological operations of a wandering mask using a blue screen. Laboratory employee at work.