The aliens are convinced that they will immediately become the center of attention, but, as everyone is dressed up in costumes, their appearance at the evening in the House of Culture does not cause any excitement.

One young astronomer is trying to bring this extraordinary event to the audience, but also to no avail, and additionally he is deeply mistaken — he mistook earthling (Saveliy Kramarov) for an alien as he was dressed as a "perpetuum mobile".

And only by midnight some of the aliens realize that they had discovered the most beautiful planet in the universe, where people know how to love, rejoice and be sad.

Valery Nosik auditioned for the role of Prokhor; as a result, Savely Kramarov was approved, who was "fooling around from the heart" on the set.

Everything was going well, but when, according to the memoirs of bassist Leonid Tyshko [ru], a policeman appeared in the doorway, the musicians, still in the character, pushed him into the corridor with bows.