Famous cinematographer Jack Cardiff directed this somewhat offbeat crime thriller and his visual flair is evident. Many shots are more than interesting, and the city of Montreal is used to advantage, filmed in what looks like the dead of winter. There's a feeling of urban bleakness, not unlike many Film Noirs shot in US or UK cities. This could qualify as a minor late-period Noir, with a plot revolving around a band of murderous types who intend to assassinate a South American president, in need of a brain operation, for political reasons. Concerned with safety, the man was moved to a Montreal hospital, but the thugs have followed him there, "intent" on carrying out their mission. The other side of the plot concerns the doctor who treats the South American, and his marital strife. That subplot works fine, thanks to the casting of Richard Todd, Betsy Drake, and a very good list of actors: Alexander Knox, Herbert Lom, Warren Stevens. The latter is particularly intimidating as boss of the murderous gang. The very slightly complicated plot involves some unexpected turns. It's all well directed by Cardiff, with a great climax. Unfortunately, this film is not easy to find in a decent print. It was shot in CinemaScope, but copies all seem to be pan & scan. Let's hope some day it will be restored.