First broadcast 14th/15th January 2010.
Left wing writer Tom Flannery rings for the emergency services when he finds his investment banker wife Bridget dead at the foot of their stairs, lying in an unnaturally large pool of blood.
Emily Joyce - Muriel
Darren Machin - Simon
John Lynch - Tom Flannery
Josephine Butler - Bridget Flannery
Tom Ward - Dr. Harry Cunningham
Emilia Fox - Dr. Nikki Alexander
Mark Roper - Paramedic
Tim Treloar - DS Simon Vedder
Jessica Regan - PC Justine Gould
Edward Hogg - Howard Day
Nikki Amuka-Bird - Det. Supt. Gaynor Jenkins
Souad Faress - Diomanda Yannis
Shenagh Govan - Nurse
Emily Beecham - Anna Flannery
Deborah Findlay - Gemma King
Simone James - Katie Thomson
Stephane Cornicard - Francois Dupont
Stuart McQuarrie - Derek Tripp
William Gaminara - Professor Leo Dalton (credit only)
Aliash Tepina - Martin Klosk
Mia Zillwood-Hunt - 6 Year Old Anna Flannery
Peter Hamilton Dyer - Coroner
Catherine Odusanya - Woman at Hearing
Michael Pennington - Prof. Pavel Vetchy
Sarah Winman - Dr. Lucy Prentiss
