Plenty of times logic is thrown right out the window in favor of added suspense. A woman is trapped in a bathroom by having a dresser pushed in front of the door. The door opened inward and the dresser being in the way would not affect the way the door opened (also it wasn't just blocking the handle because it could be rotated upwards if it was the case). Multiple times (at least 3 and probably more I just blocked out) the antagonist of the movie was incapacitated and the protagonist would run away instead of finishing them off. Friends as well as law enforcement seem to lose all common sense when they interact with the antagonist. The antagonist claims to be the protagonists mother when meeting a neighbor, but the real mother arrives shortly after this. When the neighbor and mother learn that the antagonist has flat out lied the mom runs into the house and the neighbor simply asks what is really going on. This gives the antagonist ample opportunity to kill the neighbor while they are alone. Later two cops arrive. After one cop interviews the antagonist (pretending they are the protagonist) he finds out that the woman was not the owner of the house because they were not pregnant. After learning there is a strange woman in this house that already had a call earlier for a strange woman on the property, he simply walks back to the house without taking his partner with him. The cop then confronts the antagonist and does not even attempt to use a weapon to stop or detain them. The cop is then promptly killed. The other cop follows after waiting what seems like a small eternity and finds their dead partner. They head toward the upstairs portion of the house and find the protagonist hiding upstairs. At this point the antagonist cuts the power to the house and the cop leaves the protagonist alone to return power to the house. Cop dies (shocker). The second cop did the first smart thing the whole movie and attempted to radio backup for a officer down. (Apparently these cops had to walk to the scene from the other side of the county because they are nowhere in the film until the ending). The protagonist does an additional call for backup stating both cops are dead and still it seems like there is no hustle to help at a scene where fellow police have died.
If you're still reading this in hopes of finding a reason that you should watch this movie I would recommend watching it for yourself just so you can add to this vast list I have already compiled.
If you're still reading this in hopes of finding a reason that you should watch this movie I would recommend watching it for yourself just so you can add to this vast list I have already compiled.