In the depths of an ancient forest, something has been growing. Something older than humanity itself, and perhaps greater too. When a park ranger discovers a man and his son living wild, she stumbles onto a secret that is about to change the world.
A Cape Town couple, Katherine and Hugh, are headed to their private mountain getaway, when they pick up a hitchhiker, Liza, who carries a gun. Liza is invited for lunch, but soon the couple can't get rid of her.