Sarah Jessica Parker has signed on for the suspense thriller Vacancy for Screen Gems.

The story, written by first timer Mark L. Smith, is about a couple who check into a motel unaware there's a hidden camera. Variety adds they become the subjects of a snuff film. Parker will play the wife, who is still reeling from the death of her infant son.

Production for Vacancy is set to begin in the fall; a 2007 release is scheduled.