A child is born. We see underwater swimmers representing this. He is young, in a jungle setting, with two fanciful "instincts" guiding him as swooping bird-like acrobats initially menace, then delight. As an adolescent, he enters a desert, where a man spins a large cube of metal tubing. He leaves his instinct-guides behind, and enters a garden where two statues dance in a pond. As he watches their sensual acrobatics of love, he becomes a man. He is offered wealth (represented by a golden hat) by a devil figure. In a richly decorated room, a scruffy troupe of a dozen acrobats and a little girl reawaken the old man's youthful nature and love.

Frac, a mime who is suffering from a severe bout of depression, happens to meet a troupe of circus entertainers and immediately falls in love with one of the stars, Giulietta. But while his affection for Giulietta and admiration for the performers gives him a new lease on life, Giulietta's father, the leader of the troupe, opposes the relationship and is determined to keep them apart. Meanwhile, Frac and Giulietta discover a gang of children who are held prisoner by a criminal leader who forces them to do his bidding, and they devise a plan to win the kids their freedom. .