First broadcast 17th/18th January 2013.<br /><br />Leo attempts to help Mark Benson, whose wife Shona was imprisoned for killing their baby and begins to spot discrepancies in the expert witnesses at the trial.<br /><br />Bryony Afferson - Petra Smith<br />Emilia Fox - Dr. Nikki Alexander<br />David Caves - Jack Hodgson<br />Amanda Drew - DI Reed<br />Samantha Kissin - Ellisabet Vrinksa (as Sammy Kissin)<br />Freya Parker - Mary Smith<br />Lashana Lynch - Shona Benson<br />Ashley Chin - Mark Benson<br />William Gaminara - Professor Leo Dalton<br />Bill Ward - Hearns<br />Davood Ghadami - Ali Kolahi<br />Wendy Albiston - Stacey Greggs<br />Bryan Dick - Lucas Ballinger<br />Sean Jackson - Roper<br />Liz Carr - Clarissa Mullery<br />Adam James - Dr. Richard Fell<br />Alexander Newland - Flynn<br />Mark Bonnar - Piers Christie<br />Deshaun Strong - Darius Benson<br />Matt Owens - Firefighter<br />Colin Tierney - Jeff Hart<br />Danielle Bux - Reporter Jan Evans<br />Hasan Dixon - Jake Winter
