Lemme see if I can sum up the show - some spoilers but I think you will get most of this in the first episode.
A couple with the typical dysfunctional teenage girl move into their dream house. The husband is a bit of a sleezbag, he boinked a girl and got caught by the wife. They move across the country to start over.
Jessica Lange plays a neighbor with a mongoloid daughter (it hasn't even gotten weird yet)
They hire a maid who appears differently to the wife and hubby. Wife see's the Mom from Six Feet Under. Dad see's a smoking hot red head that wears skimpy clothes and is always coming on to him.
There is a tall guy that keeps showing up in bondage gear.
Home invasions by serial killer fans, back story from families that have previously lived in the house, Zachary Quinto as a pissy queen, and a crazy half burned dude that claims he was let out of jail, after murdering his family, because he has a terminal disease.
The show has some genuine scares, gore, sex, violence, serial killers, and a stellar cast.