Look beyond the shadow of its walls and what do you find? Dan (Bonar Colleano) is an American merchant sailor docked in London who’s persuaded by music hall performer Charlie Vernon (Max Adrian) to smuggle stolen diamonds to Rotterdam – but he finds out from girlfriend Maisie (Moira Lister) that the watchman on the job was killed and it’s pinned on him. Jamaican shipmate (Earl Cameron) is there to help but he’s involved in a relationship with ticket seller Pat (Susan Shaw) and is unwittingly drawn into the crime with the police hot on their trail. Some fabulous shooting around postwar London – from the Thames to Rotherhithe Tunnel and all the back streets in between, this is a detailed and fascinating portrait of the underbelly of portside life in the bombed-out city with a couple of thrilling chases and a nailbiting theft. Cameron makes a terrific impression portraying the first interracial relationship in British cinema. The performances are wonderful all round, with nice support from Leslie Phillips and Alfie Bass among a very impressive cast. An atypical Ealing film, written by Jack Whittingham and John Eldridge, produced by Michael Balcon, directed by Basil Dearden and adorned with an adventurous score by John Addison.