When an arson attack reveals a fresh corpse alongside remains from nearly twenty years ago, DS Ronnie Blake and Cambridge's special investigations unit, known as the DEAD team, must investigate both to find the connection. Their only lead is Mariel Quinn, who, as a child, survived her mother's abduction and presumed murder. Mariel remembers nothing, except a single, haunting phrase she repeated over and over. Now, as long-buried secrets resurface, the team must untangle a mystery long thought lost, before the killer strikes again.