Unknown to everyone but his shady Middle Eastern bosses, watchmaker Hawkins is actually a professional hired assassin with a predilection for killing his targets with bombs. After disposing of a dictator and millionaire, Hawkins is assigned to kill a politician who is heading to a remote hotel, The Green Man, for a secret tryst with his secretary. There, however, Hawkins' plot is discovered by vacuum salesman William Blake, who determines to stop him.
Alastair Sim
as Hawkins
George Cole
as William Blake
Terry-Thomas
as Charles Boughtflower
Jill Adams
as Ann Vincent
Raymond Huntley
as Sir Gregory Upshott
Colin Gordon
as Reginald Willoughby-Cruft
Avril Angers
as Marigold
John Chandos
as McKechnie
Eileen Moore
as Joan Wood
Arthur Brough
as Landlord
Dora Bryan
as Lily
Richard Wattis
as Doctor
