Ancient Rus. The hero Svyatogor defeated the evil Sorcerer who wanted to conquer Rus - to do this, he used magic to turn into a Dragon. Svyatogor hid three artifacts (the claw, eye, and vein of the Dragon) in the modern world so that evil would never return. But because of the schoolboy Vanya, the Sorcerer's beloved enters our time. She wants to find these artifacts, resurrect the Dragon, and bring her betrothed back to life. Together with two heroes from ancient Rus, Vanya must find the villain and prevent her from carrying out her plan.

When a golf ball strikes a frog residing in a city park, the creature transforms into a beautiful woman Vasilisa. Ivan, pressured by his wealthy father to get married, seizes the opportunity and presents Vasilisa as his girlfriend. Vasilisa revels in her newfound human life, but as twilight descends, she reverts to her frog form. It is revealed that Vasilisa was cursed by an evil magician. To break the spell and become human once more, she must receive a kiss of genuine love.