A supernatural entity is captured by the military. It escapes. It's malevolent.
Stormhouse is a solid enough horror film. But not a particularly memorable one. The action is confined to the military base and takes the form of the invisible entity possessing person after person, creating all manner of paranoia. There are some creepy scenes for sure. And the occasional inventive gore moment. But the film is, generally speaking, fairly conventional. It's obviously been shot on a fairly tight budget so some slack has to be given. But overall it was a pretty average feature.