Ed Whitmore

Lynley and Havers' friendship is pushed to the limit during a high profile investigation into the disappearance of two teenage girls.

Old wounds are reopened when Lynley investigates the disturbing death of his godson, more than a decade after the boy's disappearance.

Although disappointed the CCTV has not given a clearer image of their suspect, Colin plows on. He presents his review findings to DCS Hamish Campbell and suggests a strategy called "Minstead Lite," to utilize their scarce resources to best effect. But Hamish wants Colin to stay on to see this new approach through. Will Colin be able to deliver on his promises?

DCI Colin Sutton is tasked with reviewing Operation Minstead, an 11-year inquiry to catch the "Night Stalker," a notorious serial rapist active in Southeast London. Colin questions the team's focus on DNA but also realizes how inadequate their resources are for an investigation of this scale. When an attack that fits a lot of the criteria is screened out, Colin's instincts yield a new lead.

While Harry and Nicky investigate DI Bridges, Leo puts himself in danger when he follows his instinct and trails violent prison officer Kessler.

Nikki and Harry track down the catholic nun behind the exorcism only to find that John now believes he's possessed, but can he be saved?

Leo is determined to uncover the truth surrounding the mysterious death of a young girl who was being treated by his college friend Delaney.

Harry and DI James deviate from the original investigation to secretly test DNA evidence from the rival Chesham laboratory to try to solve this stalled case.

Nikki is approached to help identify the paltry remains of a serial killer's undiscovered victims.

Nikki stumbles across a sinister underworld where teenage girls are groomed for sex and forced into prostitution.