WATCH: This Horror Movie Trailer Will Give You Nightmares for Days

This trailer for horror movie Goodnight Mommy is absolutely terrifying.

The feature directorial debut from Austrian filmmakers Severin Fiala and Veronika Franz is about two twin brothers whose mom returns home after getting extreme facial reconstructive surgery. She not only arrives with her face wrapped up in bandages, she also seems distant and begins displaying bizarre behavior.

That’s when the boys start wondering whether or not the woman is actually their mother.

Watch the haunting trailer above. It just might give you nightmares for days.

Goodnight Mommy hits theaters on September 11.