The Winx and the specialists are enjoying their holiday in the Wild Lands, but the idyll of the snowy resort is disrupted by the curse of a mysterious “haunted house”. After a visit to an old mansion, yesterday's newlyweds become bitter enemies, and the fairies suspect that the house is truly bewitched. The Winx go there, but the curse of nightmares strikes them too, threatening not only their peaceful holiday, but also their friendships and relationships. Will the fairies be able to overcome their fears, heal their friends from the curse and free the Savage Lands from the shackles of their tragic past?