Satanism

In the outskirts the city, a brand new house is built to provide a loving family with the love and warmth they deserve. There's a swimming pool, a swing for the children and everything you could possibly wish for. Inside is a very comfortable atmosphere, with the nicely decorated rooms and the occasional haunted image through the mirror. There's taps turning on, radio's turning on, baths running by themselves, family members coughing up blood for no reason, and the swing in the garden moves as if someone is playing on it...the only problem is, there's no one there. Fancy living in this house?