Shadows in an Empty Room
Una Magnum Special per Tony Saitta (original)
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.
Starring Stuart Whitman, John Saxon, Martin Landau, Tisa Farrow, Carole Laure, Gayle Hunnicutt, Peter MacNeill, Jean Leclerc, Jean Marchand, Anthony Forrest
Watch "Shadows in an Empty Room" from streaming services Amazon Prime, Epix (TV), Philo (Epix) and several more released in 1976. It's a drama and mystery movie, and has a rating of 6.3 out of 10 from Imdb which is usually fine for this kind of movie.
Watch it here
Amazon Prime