Suave private investigator Norman Conquest intercepts a secret message and meets a beautiful but foreign blonde lady in room 605 of the Park Plaza hotel. But when Conquest wakes up in the room the next morning he is lying next to a dead body. With the mysterious blonde nowhere to be seen, Conquest soon becomes the police s number one suspect with Inspector Williams following his every move. In order to clear his name, Conquest enlists the help of Pixie Everard (Joy Shelton), but the going gets rough when he discovers that the murder is connected to a stash of stolen diamonds. As gun-happy gangs of communists and Nazi sympathizers turn up the heat, Conquest has to solve the murder whilst staying one step ahead of both the gangs and the police.
as Norman Conquest
as Nadina Rodin
as Pixie Everard
as Supt. Williams (as Sidney James)
as Theodore Feather
as Boris Roff
as Ivan Burgin
as Baron Von Henschel
as Gregor
as Colonel Santling
as Mr. Reynolds
as Ted Birston
as Stumpy
as Hotel Manager
as Taxi Driver
as Mandeville Livingstone
as Barkov
as Lift Attendant
as Police Inspector
as Hall Porter
as Captain Kramer
as First Mate
as Mrs. Pottle
as Clerk
as Police Driver (uncredited)
as Police Sergeant (uncredited)
as Russian Embassy Man (uncredited)
as Police Constable (uncredited)
