The Blackcoat's Daughter Overview

Kat (Kiernan Shipka) and Rose (Lucy Boynton), students from different grades, are stranded at their prep school after their parents mysteriously fail to pick them up for winter break.

As they wait for answers, a troubled young woman named Joan (Emma Roberts) is making a grim path towards the school. As she closes in, Kat becomes haunted by terrifying visions and possessed by an evil force.