On a scorching hot summer day in Elkwood, Alabama, Claire Lambert staggers naked, wounded, and half-blind away from the scene of an atrocity. She is the sole survivor of a nightmare that claimed her friends, and even as she prays for rescue, the killers — a family of cannibalistic lunatics — are closing in.

A soldier suffering from post-traumatic stress disorder returns from Iraq to the news that his brother is among the murdered in Elkwood.

In snowbound Detroit, a waitress trapped in an abusive relationship gets an unexpected visit that will lead to bloodshed and send her back on the road to a past she has spent years trying to outrun.

And Claire, the only survivor of the Elkwood Massacre, haunted by her dead friends, dreams of vengeance... a dream which will be realized as grief and rage turn good people into cold-blooded murderers and force alliances among strangers.

It's time to return to Elkwood.

In the spirit of such iconic horror classics as The Texas Chainsaw Massacre and Deliverance, Kin begins at the end and studies the possible aftermath for the survivors of such traumas upon their return to the real world — the guilt, the grief, the thirst for revenge — and sets them on an unthinkable journey... back into the heart of darkness.