At first I thought this was just run-of-the-mill exploitation crap but this goes on for so long and clearly shows that whoever made it doesn't know anything about making movie trailers.
For christ's sake a monkey can sit down at an editing board and randomly push buttons and hit things and accidentally do a better editing job than this.
Okay so I can understand wanting a pool table and a hot tub, but who actually WANTS a deadly secret in their home? For whom is this a selling point? "Uh yes I'd like a house that is definitely subject to murders. The murders are non-negotiable."