Who is Mormolis? Why do adults hunt him and afraid of him? How do kids are the only ones who manage to have him by their side? How does this invisible fictitious friend of children is going to mess up all of them? Rikis and Manta, are having their vacation with their aunt and uncle. They find an old box and name it 'Mormolis'. This is their new friend, their top secret alliance. Mormolis tells to adults all the truths that young ones want to say but cannot say. He is standing opposite of injustice, the oppression, he asks space for games and time for joy. Adults are of course upset. Who is this invisible and omnipresent Mormolis? How can they exterminate him? Mormolis' hunt, however, brings only unforeseen and humorous accidents. This is because Mormolis has the help of children and wriggles out by transforming into a shoe, a hat, or even to a smoke pipe! The solution though is rather simple: in order adults to beat Mormolis they have to love him first, they have to learn to love children for what they are, for what they feel and think, for all these that their lively imagination is creating.