A brilliant thriller, and the more brilliant for dealing only with non-violent criminality of an advanced technical kind, as the burglar in question is a professional who has worked out a system of foolproof and almost impeccable systematization of his craft, which never can exclude the human factor, though, - and naturally,. even he must commit mistakes. There is only one casualty, the young Ian Bannen in one of his first parts, and he acts it brillantly, like Errol Flynn in his first film part was a glorious dead body and nothing else. The cinematography is also excellent, and the climax is not missing. Jack Hawkins as the leading police officer is reliable as usual, and all others are also quite on the level. It's a brilliant film on a B level but rises up to A for its excellent handiwork and keeps you busy and engaged all the way, from the smallest minor details in the beginning to a sustained suspense in the end. Almost 10 points.
