Don't Knock Twice (Blu-ray)

Troubled teen Chloe (Lucy Boynton) has little interest in reconnecting with her estranged mother Jess (Katee Sackhoff), a sculptor and recovering drug addict who has managed to clean up her act. Chloe has a change of heart, however, when she discovers that the urban legend of a witch who appears after two knocks on the door is actually true, and she needs mom's help to fight off the malevolent...