This isn't that bad, Maybe because I've seen Russian born Tom Conway in worse films. It's the usual type of Baker/Berman thrillers, which they continued to do on television years later with Roger Moore as 'The Saint' This starts in Berlin with Johnny Matlock going from east to west. In West Berlin he meets Frida and her dying brother Professor Dohlman, who gives him a formula for his brother to help reduce metal fatigue. After some trouble in his hotel room he flies back to England with private investigator 'Duke' Martin in the passenger seat beside him. At the airport in London Johnny meets his girlfriend Diane (pronounced Dee-Ann!)who is also his brother Michael's secretary. 'Duke' meets his friend Barney (Michael Balfour). Tom Conway plays 'Duke' in exactly the same character he played earlier in 'The Falcon' series of films from 1942-1946 when he took over from his elder brother George Sanders. After Matlock and Diane drive away from the airport they stop for the usual broken down car in the middle of the road. They are then set upon by two kidnappers who disappear with his girlfriend. After the fight 'Duke' goes to the nightclub 'The Crystal Jug Club' to meet Diane, instead he meets her sister Paula Grant (Honor Blackman) who tells 'Duke' that her name is Paula Jackson. Being the suave gentleman 'Duke' offers to take her home. After dropping her off he follows her by car to Diane's home. After this 'Duke' goes home where he meets the two kidnappers who have guns, which they then use to rob him of Diane's handbag. The next morning Webb (the owner of 'The Crystal Jug Club') visits 'Duke' and tries to buy the formula from him. When Webb leaves, 'Duke' visits Michael Matlock who is Johnny's older brother. After more trouble from Webb and the Kidnappers 'Duke' visits his friend (ex-boxer and barman at the club) Pat. While there they meet Johnny Matlock who throws Barney into the Thames river. An odd thing then happens as 'Duke' gets a phone call to meet Paula at Diane's but no one else has been there from the time before but it's totally cleaned up even though the place was turned over by the kidnappers looking for the formula. 'Duke' investigates further and finds out that MaCallister is involved and that the man behind Webb and the kidnappers is Johnny Matlock's brother Michael. He then goes and saves Diane from Webb. In the last five minutes they find the formula hidden in the middle of Diane's Lipstick. Webb escapes but the police turn up and chase Webb until he crashes and they arrest him. It's one of the usual 'quota quickies' which were turned out at that time and it's like most of Baker/Berman films in that there's punch ups and car chases around London. It's a great time waster at just over an hour, you would only get bored if it was twice the length like a modern film.