Based on a Jack Ketchum novel (and he also wrote the screenplay),
2009's Offspring is in many ways a typical mutant cannibal tale, but it
was pretty well done, and although somewhat gruesome, holds your interest
to the end.
Offspring of a 1980's lighthouse keeper have turned cannibal over the
years and sometimes turn to the locals for food, and yes, the locals ARE
the food. At all other times, they stay well hidden in the remote woods
Amy and Claire (Ahna Tessler) wind up fighting for their lives when the
group abducts them and Amy's baby. Claire's young son escapes and watches
helplessly as his mom is dragged away.
Not great, but a better than average telling of this type of story, and
one I enjoyed. The caps are from the Blu-ray version.