Dark Feed (2013)

When a group of filmmakers decides to set up their cameras in a deserted mental institution with a dark history to film a horror movie on a shoestring budget, they quickly find themselves in over their heads. The endless nights and constant exhaustion start to wear them down, and as they spend more time in the damp, decaying building, it seems to come alive, drawing energy from its unwelcome guests. As the production progresses, the crew members begin to display odd behaviors, prompting the few remaining sane individuals to realize they must escape before they too fall under the sinister influence of the structure. However, the malevolent hospital isn't ready to release its grip on them just yet.