A chilling case pulls Detective Superintendent Jane Tennison into a web of international intrigue when she investigates the death of a Bosnian refugee. The hunt for his killer quickly reveals a far more sinister truth: Tennison is pursuing not just a murderer, but potentially two Serbian war criminals desperate to bury secrets surrounding a brutal massacre from ten years prior. With the last witness silenced, Tennison must unravel a complex and dangerous past before history repeats itself.