Tim — the seven year old boy who simply adores the parents and considers himself as the happiest child on light. But once adults tell him very unpleasant news — now he had a younger brother. Tim starts being jealous of him parents and constantly notices various strangenesses in his behavior in which adults refuse to believe. The boy begins own investigation and doesn't lower from the younger brother of eyes. Once he manages to hear as the kid speaks with someone by phone then all his doubts are eliminated. He is sure, what his brother — the swindler and the villain, but whether so it actually?