It's Friday the thirteenth and Detective Inspector Andy Horton’s luck is about to run out. His Harley-Davidson is vandalized, a strange symbol etched into the paintwork. A convicted murderer, Luke Felton, a name he recognizes, has gone missing. A decomposing corpse washes up in Portsmouth Harbour. A mysterious phone call leads him to another in a windswept garden in Portchester. To make matters worse, Horton's nit-picking boss, DCI Lorraine Bliss, has returned early from her secondment to HQ. Horton's got a lot on his plate. Can he connect the dots before anyone else dies?

Jude Gray never thought she’d find herself widowed and running a working farm full-time, but here she is, living in the small Malvern village her husband Adam spent most of his life in. After a particularly gruelling lambing season, she is looking forward to some time off, but there’s no rest for the wicked, especially when she finds the body of one of Adam’s oldest friends on her farm. Unimpressed with the local constabulary's efforts, Jude starts an investigation of her own. But as the body count rises, danger creeps ever closer to Malvern Farm.

The game of cat and mouse begins... Following an eight month suspension for gross misconduct, Detective Inspector Andy Horton returns to his job after the charges are dropped, but the stain on his career and personal life persists. When Horton stumbles across a naked corpse, brutally bludgeoned, he sets out to find the killer. And while his colleagues want him off the case, fate has other plans.

A sinking boat is spotted off the South Coast. Waiting onboard is a grisly discovery. DCI Boyd, recently relocated from London to Hastings, is now with the East Sussex CID, and his first case is that of a local businessman and his new young wife, missing in the English Channel. All that remains of them is a grim scene aboard their half-submerged yacht and a digital trail of clues that could put Boyd and his daughter, Emma, in danger. 

A brutal double murder on a Norfolk beach horrifies the town of Cromer. The way the victims died is chilling and so Norfolk’s Major Investigation Team task DS Ashley Knight to manage the case. It soon becomes clear that the murders were carefully planned and the finger of suspicion points to an organised crime gang, but as the evidence mounts, a far more sinister theory emerges.