ObscureHollywood.net’s review published on Letterboxd :
Herbert Lom, the president of a South American country, has come to Canada incognito for a delicate brain operation. Lom’s political enemies have hired Warren Stevens and his associates to kill him in the hospital. Richard Todd, Lom’s doctor, realizes that his patient is in danger, and cooperates with the Royal Mounted Police to protect him.
Suspenseful with good acting from the principals, especially by Herbert Lom. Director Jack Cardiff made his name as a cinematographer, but he does a creditable directing job on this film.