In 15th century Croatia, a young farmhand named Mor patiently awaits the coming of spring, not only because of his love for nature, but also because Šu, the daughter of his master that he's been in love since their childhood, will finally return home after a long journey across Europe. However, soon after her arrival, he's informed that Šu had been forced into an arranged marriage with a young nobleman named Arno. Pained by grief, Mor begins to close himself off from the world, however, his curse begins to slowly transform him into something else.