Five figures gather round a shallow grave. They had all taken turns to dig. An innocent life had been taken but the pact had been made. Their secrets would be buried, bound in blood . . . Years later, a headmistress is found brutally strangled, and D.I. Kim Stone fast realises she's on the hunt for a twisted individual whose killing spree spans decades. The first part in a new British crime series - perfect for fans of Val McDermid.