Two people consumed by grief. One seeks salvation. The other, revenge.

Detective Inspector Carrie Tyler thought her days of active investigation were behind her. Two years after the tragic loss of her husband, she’s found refuge behind a desk, managing paperwork for cases rather than solving them. But when a brutal murder shatters the quiet of Arthwaite, she’s thrust back into the field.

The victims seem random—a recovering addict, a notorious drug dealer, a factory worker. But as more bodies appear, each bearing the same cryptic symbol carved into their flesh, Tyler realises she’s hunting something far more dangerous than a common killer.

A series of chilling letters reveals the truth: someone is methodically working through a list, settling old scores with surgical precision. As Tyler races to decode the killer’s twisted logic, she must confront her own demons while protecting those she loves most.

In a city where everyone has secrets, Tyler discovers that the deadliest lies are often the ones we tell ourselves. And with her teenage daughter’s safety hanging in the balance, she’ll risk everything to ensure that justice—not vengeance—has the final word.