On a dark night, a flying saucer hung in the middle of the yard, then a three-meter-tall alien looked into the window of the house... And the next morning, the ufologist professor, a new friend of Romka and Leshka, lost an ancient candelabra and the Order of Alexander Nevsky. The victim, giggling stupidly, says that very cute aliens from outer space visited him. Well, what can you think? Either aliens really visited our planet and for some reason stole antiques from a good person, or all this is someone’s joke! Leshka and Roman don’t believe in UFOs. They begin their own investigation...