This is one of the most unrealistic movies I've seen. The plot was interesting enough though but the details didnt make much sense. When the woman is being chased in the tunnel under the house she walks past a lot of guns. You can tell she is scared but doesn't think to grab one or even call police throughout the movie until the end. She is then chased back through the tunnel by the aggressor who ends up slowing down and stops running. She keeps going, once again past the guns. The ending of the movie didnt make much sense, Charlie had a over under style shotgun that only holds 2 shells, he fires one into the door to enter, and once when he gets hit with a baseball bat, no reloading. At which point scott grabs the gun, it never shows him reload, he checks to see if it is. Anyone could see the primers on the shells had been hit. But then he ends up shooting charlie.