The opening sequence of the film is very much like a tense horror movie as an unhinged woman terrorizes an old couple with a knife in their home before being convinced to leave...
...Once she does the front door suddenly begins to convulse wildly and loudly, coupled with the woman's screams, as if being attacked by an animal...
...A view from the other side of the door reveals it to be riddled with a barrage of hacks and slashes.
