First broadcast 7th/8th January 2010.<br /><br />Insurance investigator William Byfield is found gassed in his car after he has sparred with Nikki over a claim for terminally-ill suicide Sally Craven.<br /><br />Emilia Fox - Dr. Nikki Alexander<br />Imogen Slaughter - Sally Craven<br />Adam Kotz - David Levin<br />Kate Fahy - Margaret Hudson<br />Paul Broughton - William Byfield<br />Wunmi Mosaku - Charlie Gibbs<br />William Gaminara - Professor Leo Dalton<br />Nigel Lindsay - DS Gus Rogerson<br />Tom Ward - Dr. Harry Cunningham<br />Ruth Sheen - Esther Carey<br />Lucy Cohu - Rebecca Connelly<br />Polly Frame - Clare Ambler<br />Jaye Griffiths - Janet Mander<br />Gary Carr - Clerical Worker<br />Guy Williams - Surgeon<br />Jonty Stephens - Mark Alan<br />Javier Marzan - Hospital Pharmacist
