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Cast for season 21, episode 77 "A Not-So-Simple Mistake (351)"

Masters approaches Fi Dodds for information on Lesley Palmer's whereabouts, in the hope that she can track her down before she makes a big mistake. Nixon discovers that Palmer has set a trap for her former lover and co-conspirator, Stuart Jensen, by sending a number of false e-mails in an attempt to lure him to Oxfordshire. When they arrive, Masters finds Palmer holding Jensen at knifepoint, hoping he will reveal the location of the body of the second child that he murdered. Hunter and Perkins investigate when businessman Richard Neaman is found dead in his own bed, but their initial suspicions of sudden death are proven wrong when a post mortem reveals that he was suffocated. Meanwhile, Bryant shares her suspicions on the real Gabriel Kent with Smithy, and they begin to question how likely it is when PC Kent threatens Bryant to keep quiet.

Pauline Quirke, Julie Legrand and James Barriscale guest star

Season 21 index | <<< S21E76 "Keep it Out (350)" | S21E78 "Let it Slip (352)" >>>