Alec Guinness
Professor Marcus
A gang planning a 'job' find themselves living with a little old lady, who thinks they are musicians. When the gang set out to kill Mrs Wilberforce, they run into one problem after another, and they get what they deserve.
Professor Marcus
Claude, alias 'Major Courtney'
Louis, alias 'Mr. Harvey'
Harry, alias 'Mr. Robinson'
'One-Round', alias 'Mr. Lawson'
Mrs. Wilberforce
The Superintendent
The Sergeant
The Barrow Boy
Large Lady (uncredited)
Hypatia (uncredited)
Cab Driver (uncredited)
Burglar (uncredited)
Parcels Clerk (uncredited)
Junk Man (uncredited)
Miss Pringle (uncredited)
Security Van Driver (uncredited)
Station Master (uncredited)
Security Guard (uncredited)
Second Cab Driver (uncredited)
Director
