The authors of the film are trying to figure out what UFOs (unidentified flying objects) are, who aliens are and whether they arrive on planet Earth. 1 part. Buildings and streets of Belgrade (Yugoslavia). Writer-journalist Djordje Gajic on the Danube embankment explains to the Soviet journalist Alexander Poroshin why ufological societies were created in the village of Bashaid (120 km north of Belgrade), where the clairvoyant Neboisha Bocevic lives, who talks about the resurrection of Jesus Christ. Polish science fiction writer Stanislav Lem says against the backdrop of bookshelves that a person likes to think about the existence of the mysterious and incomprehensible. Russian ufologist Vladimir Georgievich Azhazha in his office discusses whether it is correct to call everything incomprehensible - alien. Part 2. Bags with letters from different countries on the veranda of the house of N. Bochevich in the village of Bashaid. Journalist A. Poroshin listens to the predictions of a clairvoyant about the near future of Russia. Moscow Kremlin with Vodovzvodnaya Tower (architect A. Gilardi, 1488). The head of the UFO Center, vice-president of the All-Union UFO Association, Vladimir Georgievich Azhazha, says that there is no scientific evidence of the arrival of UFOs. Science fiction writer A.P. Kazantsev at home assures that the Tunguska meteorite was a controlled ship. Part 3. Images of the crucifixion of Jesus Christ; outlines of mountains in heavy fog; paintings depicting humanoids. Ufologist V.G. Azhazha talks about the symposium "Space and UFOs" in Japan, shows photographs. Former locksmith Viktor Mikhailovich Korolyov sits in a room near his paintings - after meeting with incomprehensible (dark) forces, he began to paint pictures, depicting unknown creatures. Part 4. Main Market Square in Krakow with a monument to Adam Mickiewicz (sculptor G. Rieger, 1898) and St. Mary's Church (Church of the Assumption of the Blessed Virgin Mary) (XY century); Cloth rows (architect T. Prylinsky, 1879). House of the writer S. Lem in the suburbs of Krakow; on the table are science fiction books in Russian (Solaris, Magellanic Cloud). The organizer and head of the club of young dog breeders in Samara Klavdiya Sergeevna Pribylskaya among children with dogs. She believes that man is an artificial creation and contacts with aliens are possible only with love for the living. Part 5. Images of the life path of Jesus Christ and the Most Holy Theotokos in paintings and icons. Religious procession in the Patriarchate of the Serbian Orthodox Church with the participation of the Archbishop of Pecs, Metropolitan of Belgrade-Karlovac, Patriarch of Serbia Paul. Photos of the Shroud of Turin. The announcer voices the opinion of the science fiction writer Anatoly Martynov, who considers the ascension of Christ to be a classic UFO.