Percy Boon lives with his mother in a shared rented house filled with an assortment of eccentric characters in central London. Though well intentioned, Percy becomes entangled with gangsters and finds himself involved in a murder. The story explores the consequences of this event on Percy and the other residents of the house. Cast: - Richard Attenborough as Percy Boon - Alastair Sim as Mr. Squales - Fay Compton as Mrs. Josser - Stephen Murray as Uncle Henry - Wylie Watson as Mr. Josser - Susan Shaw as Doris Josser - Joyce Carey as Mrs. Vizzard - Ivy St. Helier as Connie Coke - Andrew Crawford as Bill - Hugh Griffith as Headlam Fynne - Eleanor Summerfield as The Blonde - Gladys Henson as Mrs. Boon - Maurice Denham as Jack Rufus - Ivor Barnard as Mr. Justice Plymme - Cecil Trouncer as Mr. Henry Wassall - Arthur Howard as Mr. Chinkwell - John Salew as Mr. Barks - Cyril Chamberlain as Detective Sergeant Wilson - Aubrey Dexter as Mr. Battlebury - Jack McNaughton as Jimmy - Henry Hewitt as Verriter - Fabia Drake as Mrs. Jan Byl - Sydney Tafler as Nightclub Receptionist - Henry Edwards as Police Superintendent - George Cross as Inspector Cartwright - Edward Evans as Detective Sergeant Taylor - Russell Waters as Clerk of the Court - Kenneth Downey as Mr. Veezey Blaize, K.C. - Basil Cunard as Foreman of the Jury - Wensley Pithey as First Warden - Manville Tarrant as Second Warden Runtime: 112 minutes