Blue Murder - season 5 (2009)

When a cheerleading coach is found brutally murdered, suspicion soon falls on her husband, but further investigation by DCI Lewis and the team uncovers a bitter family rivalry and a shocking affair. Janine struggles to cope at home following the departure of her ex-husband, Pete.

DI Mayne goes under cover as a prisoner to investigate the suspicious death of an inmate who had been awaiting the outcome of an appeal against a murder conviction. He soon discovers that several inmates have a connection with the original murder victim. Janine frets when Michael is arrested following a car crash.

DCI Lewis and the team deal with the murder of a veterinary surgeon and discover that the victim had been planning to leave her husband for her lover, but the investigation leads to the uncovering of some difficult relationships within the tight-knit farming community. DS Butchers has a difficult appraisal with DI Mayne.

The lead vocalist of a rock band is found murdered ahead of the release of the band's latest album. DCI Lewis and the team discover that the deceased had been a difficult person and made a number of enemies. Ellie, a fan of the band, takes a great interest in the investigation.

DCI Lewis leads an investigation into the murder of a private investigator. The team investigate the detective agency and discover that the dead man had been working on behalf of a convicted criminal, but DS Shap appears to be pursuing his own agenda. Janine takes some time off work to deal with Tom, who has been playing truant.

Second of a two-part story. Janine desperately tries to sort things out with her son Tom whilst heading up this tough murder enquiry. With Shap's protection of a murder suspect now exposed, the team face a race against time to find the real killer.