The synopsis for Knife Edge here
"Nathalie Press plays a successful Wall Street trader who returns to England with her new husband and five-year-old son, but their new start together turns into a nightmare when they move into a country house which contains a terrible secret."
Release Date: April 20th, 2010 (DVD).
Director: Anthony Hickox.
Wrtier: Fiona Combe, and Anthony Hickox.
Cast: Hugh Bonneville, Tamsin Egerton, Joan Plowright, Natalie Press, and Jamie Harris.
Knife Edge at Shock
Knife Edge at Horror News Net