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Rachel (Suranne Jones) is criticised for the lack of progress in the investigation and with Steve Dench (Richard Riddell) still the prime suspect, she knows she must find both a murder weapon and the encryption code used to access the Taking Out The Trash website. Then, they not only get Steve for multiple murders, but they also find the man he’s playing his sick game with. Discovering that the witness at Michael Edgerton’s murder may be one of the killers marks a big breakthrough, and with the attacks increasing, Rachel hopes that the killers will start to make mistakes.

The appearance of a star on Rachel’s gatepost terrifies Alison (Sally Lindsay) and when Julie Dodson (Pippa Haywood) finds out, Rachel’s position as Acting DI is jeopardized. But with new evidence challenging Steve’s alibi and a positive ID of the witness, Rachel is determined to hang onto the case. When Janet’s (Lesley Sharp) attempt to help Taisie (Harriet Waters) results in a complaint, her faith in doing everything by the book is rocked, and with Rachel’s pregnancy out in the open, both Scott and Bailey have life-changing decisions to make about their futures.