Two representatives of an extraterrestrial civilization are sent to Earth to find the missing son of the Emperor and help him complete a secret mission. The aliens mimic humans and pose as an ordinary couple, Anton and Marina. In order not to attract too much attention, they try to do all the same things as others: go to work, communicate with friends and colleagues, engage in everyday life. At first, the aliens have a very difficult time. However, they gradually get used to it, and Anton sees more and more advantages in earthly life and does not want to return to his native planet.