Great sites
Continuity: When Abby slaughters the bullies, we see most of the scene from Owen's underwater point of view. First, a decapitated head floats down, leaving a trail of blood. Then, more dismembered bodies splash into the water. We get the sense that the pool water around Owen should be pretty bloody. Yet, when he surfaces, the water around him is completely clear, with no evidence of any blood or bodies.
Plot hole: In the scene where Owen is looking through the telescope at his neighbor's crime scene, you can see the investigators covering and inspecting the body in the home on the neighbors weight bench, implying Abby killed him by surprise while lifting. This contradicts both the theme of the film and Abby's code of needing permission to enter the home. It is revealed later that if Abby enters a home without permission she will bleed to death, making this neighbors death within his home impossible.






