Matriarch

This terrifying thriller unfolds as pregnant Rachel and her husband, Matt, are stranded after wrecking their car on a remote Scottish road. Though hostile at first, a nearby farmer and his wife welcome them in after learning that Rachel is with child. Suddenly, Rachel realizes the family's "daughter" is a local girl who'd gone missing years before. But when she and Matt attempt to escape, they're held at gunpoint just as Rachel goes into labor. Will their child's first day on earth be the couple's last?