Moscow schoolboy Volodya accidentally fishes out of the Moscow River a mysterious lamp, from which the genie Khottabych appears. He promises to fulfill any of his wishes, but each of them turns into unexpected consequences. Magic multiplies, rather than solves Volodya's problems. Nevertheless, the schoolboy is imbued with the genie's problems and, as a result, finds himself in the past, where Khottabych's daughter marries an unloved man. Trying to destroy this marriage and free Khottabych, Volodya and his friends go to an ancient Eastern wedding.