When a woman confesses to murdering her husband, the Lyell team must determine if all is as it seems. Meanwhile, Simone is shocked to be reunited with a detective from her childhood and struggles to untangle her past.

Adam Clayton-Smith, Christine Bottomley, Duncan Preston, Ella Schrey-Yeats, Gina Bramhill, Hugh Quarshie, Lainy Boyle, Laura Marcus, Lloyd Everitt, Matthew Gravelle, Nadia Albina, Paul Thornley, Simon Lipkin, Sutara Gayle