While we’ve already shared the short film about a dozen times since its inception, you can now watch the short film that inspired Universal’s Mama accompanied by an intro by producer Guillermo del Toro.

In theaters January 18, Mama was based on a short film of the same name from Andy and Barbara Muschietti. The below look at the original short film is presented by Guillermo del Toro and includes one of the scariest scenes del Toro has ever seen. The craftsmanship, ingenuity, and horror presented by the Muschiettis made him want to be a Producer for the feature film.

“Five years ago, sisters Victoria and Lilly vanished from their suburban neighborhood without a trace. Since then, their Uncle Lucas (Nikolaj Coster-Waldau) and his girlfriend, Annabel (Jessica Chastain), have been madly searching for them. But when, incredibly, the kids are found alive in a decrepit cabin, the couple wonders if the girls are the only guests they have welcomed into their home.

As Annabel tries to introduce the children to a normal life, she grows convinced of an evil presence in their house. Are the sisters experiencing traumatic stress, or is a ghost coming to visit them? How did the broken girls survive those years all alone? As she answers these disturbing questions, the new mother will find that the whispers she hears at bedtime are coming from the lips of a deadly presence.”