A grouping of female student and their lector, Nora, encampment inside a bomb sand trap to do research on the thesis they are write. After be escort by a sinister-looking janitor, the girl fix to pass 24 hours lock in the sand trap. In the center of the nighttime, two of them vanish without a hint. Nora organize the hunt, but shortly the survivor happen themselves trap in a whirlpool of force at the custody of an anthropophagous.