Before you open a door, you should think about what’s on the other side.

That’s good advice for anyone, especially the hapless heist-makers in the new trailer for Filmrise’s The Vault. If the trailer is any indication, Bank Manager James Franco is hiding one hell of a dark secret in what he calls a “private, antiquated, off the grid” vault deep within the bowels of the building. What could possibly go wrong?

Directed by Dan Bush who gave us The Signal, this dark caper stars everyone’s favorite every-man James Franco (Spiderman, 127 Hours), along with Taryn Manning (Orange Is The New Black, 8-Mile), Francesca Eastwood (FX’s Fargo, Final Girl), Scott Haze (Midnight Special) and Clifton Collins, Jr (Pacific Rim, Star Trek).

The Vault gets opened in select theaters and On-Demand September 1st, 2017. Take a peek inside its evil with the trailer below.

Two estranged sisters are forced to rob a bank in order to save their brother. The heist begins smoothly, but mayhem ensues when the defiant bank manager sends them to a basement-level vault—home to something truly evil.