A lawyer receives a note telling him that he'll be dead in 48 hours - and Scotland Yard must work fast to uncover the serial killer known as 'The Ringer'.
as Det. Insp. Alan Wembury
as Dr Anthony Lomond
as Maurice Meister
as Samuel Cuthbert 'Sam' Hackett
as Cora Ann Milton
as Inspector Bliss
as Mary Lenley
as John Lenley
as Det. Sgt. Richards
as Police Station Sergeant
as Prison Governor
as Col. Walford
as Drunken Scotsman (uncredited)
