The Pack (2010)

Amidst an icy wasteland, Charlotte encounters Max, a lone hitchhiker. They pause at a desolate truck-stop diner. When Max mysteriously vanishes during a bathroom break, Charlotte's search is fruitless. Returning at night, she is abducted by La Spack, the bartender, who is revealed as Max's mother. La Spack must feed her offspring, a ravenous group known as "The Pack," who are undead and insatiable. Charlotte is thrust into a harrowing nightmare. Isolated in this desolate stretch, she faces a chilling truth: her fate as the next victim is sealed.