Pale Creature Watches Mother and Child Sleep

by Mary
(Pennsylvania, USA)

Looking for a short film about a mother and daughter that move into a house and at night this pale creature would crawl out of the air ducts and watch them sleep.

Eventually it ate them and the old couple that sold them the house came in and cleaned their remains up.

It then goes into a back story where it explains that that thing was their child.

Any ideas of what this movie is called? I'm dying to know.