Writer-director Trey Edward Shults's Krisha burst out of the South by Southwest film festival two years ago, a lacerating family drama revolving around a large family whose Thanksgiving dinner is disrupted by the return of a troubled older family member. The movie won both the Grand Jury Award and the Audience Award at the festival; it was released in theaters last year and received further critical and popular acclaim.

The movie also marked Shults as a filmmaker to watch. He took familiar elements and molded them into something distinctive, and enhanced the actors' raw and authentic performances with his ability to create a disturbing, almost otherworldly atmosphere.

Now Shults' follow-up feature is on its way and it's a bold choice. It Comes at Night is described as a horror movie about a man who discovers that something evil is stalking his family's home. Joel Edgerton stars.

Watch the unsettling first teaser below.

The beauty of the teaser is that it doesn't give away too much. The official synopsis suggests "an unnatural threat" is terrorizing the world, which has prompted a man to take refuge with his wife and son in a small house far from danger. At least, that's what they think until another family shows up on their doorstep. Inevitably, paranoia and mistrust between the families grows until it boils over. Can they survive their own conflicts before outside horrors invade their home?

As with Krisha, it looks like Shults' next film will take familiar material and twist it into something unexpected and probably terrifying. Riley Keough, Christopher Abbot and Carmen Ejogo also star. It Comes at Night will open in theaters on August 25.