Good Boy

A relaxing Christmas vacation turns into a terrifying fight for survival as the children begin to turn on their parents.

On a quiet suburban street tucked within a 'safe neighborhood', a babysitter must defend a twelve-year-old boy from strangers breaking into the house, only to discover that this is far from a normal home invasion.

Jess, a newly separated mother and nurse, moves into her old family farmhouse with Tyler, her teenage daughter, and Owen, her eight-year-old son. One night, the family dog senses something in the woods and runs off to find it. He returns a couple of days later and attacks Owen, savagely biting him before Jess is able to intervene. Owen is rushed to the hospital. His condition worsens, and no one can figure out why... until Jess discovers a disturbing cure...

A genetic research facility worker exposes animal abuses there to a local TV reporter, who frees and takes in a genetically altered dog from the lab, unaware that he has a violent streak.