Mavka, a Soul of the Forest, faces an impossible choice between love and her duty as Guardian of the Heart of the Forest when she falls for a human, a talented young musician named Lukas.

Marta, an ordinary girl from an orphanage, has no parents and above all dreams of a family. She is convinced that she lacks something to be adopted by her parents. Due to certain circumstances, the girl finds herself in the world of fantastic Christmas spirits who promise to give her the necessary qualities and make her dream come true.