DI Sheridan Holler is used to solving crimes on Liverpool’s streets, but after a decayed corpse turns up in a cemetery, she finds herself reopening not one but two cold cases. Seven years earlier, two women were gunned down and the only suspect, small-time drug dealer John Lively, was never seen again. Case closed. Until the body in the cemetery is identified as his. Holler needs to work out if Lively was killed out of revenge, or was just a victim of the criminal world he inhabited. When shocking evidence is revealed about the murder weapon, Holler’s cold case starts to look hopeless once more. But defeat is not an option. Driven by the unsolved and traumatic murder of her brother when they were children, DI Holler’s pursuit of justice is relentless. As old wounds are reopened, the police close in on the killer, but the threat of them striking again is all too real. Can DI Holler put the pieces of the puzzle together before anyone else winds up dead?

A double murder. A missing body. A shocking death. Can DI Holler connect the three cases in time? In Liverpool, a woman inexplicably leaps to her death. The following morning, two bodies are found on nearby Crosby Beach: a woman tied to a statue, and a man buried up to his neck and left to drown. When a nine-month-old murder case is reopened, DI Sheridan Holler is shocked to uncover family connections between the victim, Daniel Parks, and the three unexplained deaths. With Daniel’s body still missing and the number-one suspect cleared of the crime, Holler’s cold case suddenly becomes a major murder investigation. Someone seems hell-bent on destroying the Parks family—but why? And as the links between the victims become increasingly sinister, can DI Holler find who’s pulling the strings before the killer strikes again?

A missing woman. A gruesome delivery. A terrifying discovery. Where is Caroline Crow? All has been quiet in Liverpool, suspiciously quiet… So, when a frantic 999 call comes into Hale Street Police Station reporting a missing woman, it seems like there’s work to do. Except for DI Sheridan Holler there are questions. Why did Caroline Crow take her purse, suitcase and even tell friends she was going away? There’s no reason to suspect foul play…until a severed, burned hand is delivered to another address. With no hard evidence linking the two cases, Holler’s gut is telling her that all is not as it seems and if she’s right, time is running out to find Caroline alive. As DI Holler attempts to weed out the truth from the lies, will this be one puzzle that runs out the clock? Or can Holler and her team fit the pieces together before it’s too late?

Crack the code. Stop the sequence. Catch the killer. When homeless man Bobby Stover insists his friend’s suicide was really murder, DI Sheridan Holler is sceptical—until she uncovers a series of deaths, all of them in Liverpool, all ruled as suicides, that suddenly look like anything but. The killings span years, each one chillingly staged, the truth buried beneath an illusion of despair. This murderer is following a mysterious pattern—and there seems to be no end in sight. Sheridan and her team find themselves in a race to crack the killer’s code, but when a crucial piece of the puzzle falls into place, they realise the next five victims have already been marked. They don’t know who. They don’t know where. But they know it won’t stop here. Can they get one step ahead of a calculating killer?