PARK PLAZA 605 is a low budget British film noir in which a stock detective-type character helps the police to track down a gang of Russian thieves and murderers. The American title is NORMAN CONQUEST, although it's not to be confused with the filmed Alan Ayckbourn plays starring Tom Conti.
Instead this is a straightforward police procedural with a good little cast and some tight suspense. Tom Conway (George Sanders's less well-known brother) plays a guy who finds himself caught up in a murder when a body is chucked out of a window; he's the main suspect so must discover the identity of the real crooks in order to clear his name.
Although this is a low rent film throughout, it has a fast pace and fair direction from Bernard Knowles. The supporting cast is also a lively one, with a nice turn from Sid James as a comedic cop which foreshadows his later work in the likes of CARRY ON SERGEANT. Richard Wattis appears in a rare non-comedy part, and there are bit parts for genre regulars like Anton Diffring and Terence Alexander. Overall, PARK PLAZA 605 is a fun little film and one I can recommend to genre fans.