Mischa Barton just keeps raking up the screen roles. According to Variety, she has now signed on to star in the psychological thriller Walled In. Deborah Kara Unger and Cameron Bright have also joined the project, which is being produced by Leomax Entertainment.

The screenplay, by Gilles Paquet-Brenner, is based on Serge Broselot's bestselling French novel Les Emmeures. The plot finds Barton as a demolition company representative who must supervise the razing of a mysterious building. Entombed bodies, and a horrifying secret, are discovered underneath the foundation.

Brenner is directing the film. It will begin shooting October 22nd in Saskatchewan.