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
Hawkins
George Cole
William Blake
Terry-Thomas
Charles Boughtflower
Jill Adams
Ann Vincent
Raymond Huntley
Sir Gregory Upshott
Colin Gordon
Reginald Willoughby-Cruft
Avril Angers
Marigold
John Chandos
McKechnie
Eileen Moore
Joan Wood
Arthur Brough
Landlord
Dora Bryan
Lily
Richard Wattis
Doctor
Alexander Gauge
Chairman
Cyril Chamberlain
Sergeant Bassett
Vivien Wood
Leader of Trio
