After a tragic accident, Tomek loses the ability to walk and retreats into himself. His relationship with his siblings crumbles, and everyday life loses its color—until Fleak appears in his life: a hairy, playful creature from another dimension. Together, they are transported to a fantasy world where Tomek learns to trust again, laugh, and—literally—get back on his feet. But nothing is as simple as it seems: his own shadow spins out of control, becoming a threat to the world around him. Will the boy who has lost faith in himself be able to face the monster and restore order?