Knife Edge

Knife Edge is a 2009 British thriller film directed by Anthony Hickox and starring Nathalie Press, Hugh Bonneville and Tamsin Egerton.

Her son Thomass new friend Tobias, has the same name as the little boy who was murdered in the houseyears ago. This difficult and clever doubling blurs what is truth and what is a delusion.Anthony Hickox directed the thriller and was produced by Fiona Combe, Pippa Cross and Janette Day. It was produced by Seven Arts Films and is the return of Hickox to the horror genre. Hickox shot the film in London and the Home Counties, England, UK. The film based on a screenplay from Fiona Combe, Anthony Hickox and Robb Squire. ........

Source: Wikipedia