Quick recap
Brothers Harry and Alex arrive at Camp Spirit Moon, a camp big on pranks. Strange things pile up: puddles of blue goo in their cabin, a girl, Lucy, who grabs a hot dog out of the fire with her bare hand. Then Lucy tells Harry the truth: a fog killed everyone there, and the campers are ghosts trapped forever. The only way out is to possess a living body. Lucy tries to get inside Harry; he fights her off and runs with Alex. The spirits surround the boys, but start fighting over who gets to leave, blend into a mist, and drift away. On the run, Alex, a great singer, hums off-key. Elvis, the camper who sang badly, is inside him.
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