Here is the trailer for Primal that will be making its debut at Cannes. Its pretty damn bloody, make sure you check this one out!

Synopsis:

Anja, a young university student, and four friends accompany Dace, an anthropology major, on a journey in search of the now legendary rock painting. The only evidence of its existence is the diary of a pioneer who saw the painting over one hundred years ago, before going mad and murdering his family.

Their excitement on finding the painting is soon undercut by disquiet as one of them, Mel, becomes delirious after skinny-dipping in the nearby billabong. Her condition rapidly worsens, and she regresses to a predatory, primal state and viciously attacks her friends. The group is strained to breaking point as their trip fast becomes a desperate fight for survival. When Anja discovers that a nearby tunnel may harbour their only hope for escape she inadvertently draws closer to a final confrontation with the evil deep within the mountain.