In the middle of nowhere is a labyrinthine marshland teetering on the verge of extinction. Committed to saving it is Dr Pria Anan, using diligence and reason to fight the forces of ignorance that threaten its existence. With rival Ben and assistant Will helping her Pria is certain she is in control but her fears threaten to overwhelm her, tensions mount and control becomes elusive. Finally fear becomes manifest in the form of a horrifying evil; they must abandon science and focus on survival - A man stalks a group of young microbiologists.