The twelve sightseers in a hot-air balloon are drifting over Northumberland. They're passing over an isolated farmhouse when Jessica and her sister, Bella see a man killing a young woman. Everyone in the balloon is watching the man when he looks up and spots them. He only has one option-- to kill them all. After a furious crash the balloon crashes, and Jessica's the only survivor. She's seen his face-- and he won't rest until he's eliminated the only witness to his crime.