In "Mamnik," a chilling battle unfolds between ordinary lives and an ancient evil ripped straight from legend. When a remote border village, Vrakola, finds itself cut off from the world due to pandemic restrictions, a disturbing wave of murders shatters its fragile peace. As unsettling marks appear on the villagers, three individuals are drawn into a perilous investigation, unearthing long-buried secrets and forgotten folklore along the way. They soon find themselves confronting not just a criminal mystery, but also a terrifying creature from Bulgarian myth – the Mamnik, a winged demon said to herald death and misfortune.