Anchor Bay Films’ upcoming biological warfare thriller, “The Demented” will be on Blu-ray/DVD combo pack July 30. The film comes from the creative minds of “I Spit on Your Grave” and “A Nightmare on Elm Street” and stars Sarah Butler (“I Spit on Your Grave”), Brittney Alger (“21 Jump Street”), Kayla Ewell (“The Vampire Diaries”), Richard Kohnke (“The Carrie Diaries”) and Michael Welch (“The Twilight Saga” Franchise).

The film starts out innocently enough, but it quickly becomes a scary survival film with the enemy being infected townspeople. Here’s the synopsis of “The Demented”:

“THE DEMENTED follows six college friends as they meet up for a carefree weekend in a beautiful rural home. A terrorist missile attack in a nearby town infects much of the townspeople with a deadly virus that induces rabies-like symptoms…with devastating consequences. Ravenous and fast, the infected townspeople turn their sights on the vacation home where the friends are gathered…and are now barricaded. How long can they hide? Even with the infected “sleeping” in the streets, can they make their escape? If so, to what?”

If you’re excited about the film, then you’d be excited about our “The Demented” Twitter giveaway! We’ve got two Blu-ray/DVD combo packs to give away! Here’s what you need to do:

Follow us @Shockya and tweet us the phrase, “@Shockya is giving away The Demented Blu-ray/DVD combo packs! Follow and RT to enter!” You have until August 9 to enter. You can enter every day until the cut-off date and after that, we’ll pick the winners at random and notify them through Twitter. Good luck!