A group of four British tourists, Charles, his wife Diana, his brother Alan, and Alan's wife Helen, travel through the Carpathian Mountains. They ignore warnings from Father Sandor, a monk at Kleinberg Monastery, about venturing into the nearby castle. The travelers are left stranded when their coachman refuses to take them any further, abandoning them in a remote area. To their surprise, an empty carriage mysteriously arrives and takes them to the secluded Castle Dracula where they are reluctantly welcomed by the sinister servant, Klove. As night falls, the group discovers that something horrific is being prepared within the castle walls.

The situation escalates quickly as one of the travelers goes missing under suspicious circumstances, leading the rest to uncover the dark nature of the castle and its undead master. They come face to face with the supernatural horrors within as they struggle for their survival and attempt to escape the dreadful fate that awaits them. With tension mounting and unknown threats surrounding them, the remaining tourists must rely on their wits to survive the night and escape from the grip of unending terror.