College student Lucy and her friends spend their vacation at her family's home in Hawaii, which includes her pet chimpanzee, Ben. However, when Ben contracts rabies after being bitten by a rabid animal, the group must fight for their lives in order to avoid the now-violent chimp.

That's one bad ape, and Primate is one lean, mean, effective chiller.

With ape-sh*t gore to spare, Primate may strain suspension of disbelief but ultimately delivers a thrilling over-the-top slasher.