Bloodlock (2008)

Christine and her husband Barry have bought an old fixer upper in a small town using her recent inheritance believing that fixing it up and a fresh start will help her recover from a near nervous breakdown Christine has invited her sister Lisa to move in with them unaware that she is having an affair with husband Barry Barry a police detective only stays with Christine for her money and is looking a way to rid himself permanently of her Lisa flirts with Barry under Christines nose delighting in the thrill of the possibility of being discovered They find a secret room in the basement laundry with a heavy titanium door with a cross and mystical writings locked by an intricate mechanism They joke about it but only as a way of coping with the mounting fear that it hides something horrible