Crises happen in any relationship. The most romantic day of the year has prepared serious challenges for the heroes. Will they find the strength to cope? Or will they be scared and disperse? The film is about the fact that true love is able to conquer everything, even if Cupid's arrow accidentally hit the wrong place.

When four friends escape their worries in Moscow for a relaxing vacation in Spain, their trip turns into a rowdy getaway filled with juicy revelations.

The story of a young girl who believes in miracles. The guys do not pay any attention to her, at work, her ideas are stolen and used, friends consider her a little strange, but the young girl does not lose heart and continues to believe in a prince on a white horse. And one day he appears. Handsome, young, he is subject to magic, and henceforth her feelings. How now not to believe in a fairy tale when she herself was in it?... The long-awaited prince will make her life truly magical.

In an ordinary industrial Soviet town, notable only for presence of a radio-telescope, people start behaving strangely, in a robotic manner, while assuming geometry-inspired aliases and organizing into a new hierarchy. The phenomenon spreads via a device of alien origin, called “the mediator”, capable of implanting extraterrestrial minds into human bodies. The aliens are bound by limitations of the terrestrial technology, having to use the means at the disposal of humans to prepare the grounds for the full-scale invasion. With “the mediator" being unable to subdue minds of children, lunatics, geniuses, and rebels, a struggle over the fate of the town and the human civilization ensues.

When a 7-year-old son of the well-known businessman is kidnapped, he has no idea what awaits him! It turns out that the mysterious kidnapper does not need any ransom, but has only one claim: during the next day father must decide who will die of the two: his child or himself...