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
George Cole
Terry-Thomas
Jill Adams
Raymond Huntley
Colin Gordon
Avril Angers
John Chandos
Eileen Moore
Arthur Brough
Dora Bryan
Richard Wattis
Alexander Gauge
Cyril Chamberlain
Vivien Wood
Marie Burke
Lucy Griffiths
Arthur Lowe
Peter Bull
Willoughby Goddard
Michael Ripper
Leslie Weston
Doris Yorke