An Ottawa police captain searches for the person who poisoned his sister, who was attending the university in Montreal. So desperate is he for revenge that he begin to use his own brutal methods to find the killer. Soon he discovers that not everything is what he thought it was.

"Enter at your own risk... for there is no such thing as a truly empty room"

Credits

Alberto De MartinoDirector

Stuart WhitmanCapt. Tony Saitta

John SaxonSgt. Ned Matthews

Martin LandauDr. George Tracer

Tisa FarrowJulie Foster