Babysitter Wanted (movie, 2009)

When she takes a job babysitting a young boy (Kai Caster) for a night at his family's remote farmhouse, sweet college co-ed Angie Albright (Sarah Thompson) becomes the target of a scar-covered creep making mysterious phone calls and prowling outside the windows. Angie gets the drop on the would-be killer, but quickly discovers that her nightmare has just begun.