S12 E04. The Clocks.

First broadcast 26th December 2011.

Sheila Webb, a girl working for a secretarial service, is summoned to the house of a customer. There she finds the dead body of a man and four clocks all set to the wrong time.

David Suchet as Hercule Poirot
Olivia Grant as Annabel Larkin
Anna Skellern as Fiona Hanbury
Tom Burke as Lt. Colin Race
Andrew Havill as actor playing Sven Hjerson
Victoria Wicks as Mrs Swinburne
Jaime Winstone as Sheila Webb
Sinead Keenan as Nora Brent
Lesley Sharp as Miss Martindale
Anna Massey as Miss Pebmarsh
Phil Daniels as Inspector Hardcastle
Ben Righton as Constable Jenkins
Beatie Edney as Mrs Hemmings
Abigail Thaw as Rachel Waterhouse
Guy Henry as Matthew Waterhouse
Geoffrey Palmer as Vice Admiral Hamling
Phoebe Strickland as May
Isabella Parriss as Jenny
Tessa Peake-Jones as Val Bland
Jason Watkins as Joe Bland
Stephen Boxer as Christopher Mabbutt
Andrew Forbes as Professor Purdy
Frances Barber as Merlina Rival
Greg Bennett as Plain Clothed Detective