'The Vampire Diaries'' Kevin Williamson Sells Thriller to Fox

The Warner Bros. TV-produced one-hour drama project revolves around a serial killer who creates a cult of fellow serial killers.

Fox is getting into the Kevin Williamson business.

PHOTOS: Fall TV's 12 Most Anticipated Shows

The mastermind behind the CW's sudsy adaptations, The Vampire Diaries and The Secret Circle, has sold an original hour-hour drama with a put pilot commitment to the network. Williamson will serve as writer and executive producer on the project.

PHOTOS: 18 Familiar Faces of Fall TV

The thriller, from Williamson's Outerbanks Entertainment in association with Warner Bros. TV, centers on a diabolical serial killer who uses technology to create a cult of serial killers, and the FBI agent who finds himself in the middle of it.  

Williamson, whose other credits include Scream and Dawson's Creek, is repped by WME.