Jaś is an eight-year-old boy who spends most of his time with his mother. His father is a hard-working corporate employee. When he doesn't come home on time one day, Jaś and his mother decide to go looking for him. Meanwhile, Jaś father has a strange adventure. He misses his stop on the way to work and ends up lost in the woods. There he meets three mysterious characters: Kikimora, Domowik and Sandman. They are spirits who, in the old days, used to live in people's houses and play tricks on them. When people stopped believing in them, they were forced to go live in the woods. They try to put a spell on Jaś's father to make him forget about his family and stay in the forest with them. Jaś and his mother fight to free Jaś's father from the power of the mischievous sprites. To do so they use a very old tune which Jaś's mother remembers from childhood.
For viewers aged 8 and up.