A high-stakes criminal trial of a ruthless Brighton drug lord and a puzzling double murder investigation push Grace's team to the very brink.

When a woman is discovered murdered in her flat, the evidence first points to a burglary gone wrong in a case that conceals a chilling secret.

When a man is found dead in his hotel, the scene reads like a crime of passion - the room was paid for in cash and booked in the name Travis Simmons. Travis has no ID and no bank cards - when Grace discovers a burner phone, he suspects that his victim was meeting someone in secret. When things don't quite add up and Grace realises that something in this case isn't what it seems, the team is thrown into a world where a tangled web of mistaken identity leads to a painful secret

As Grace navigates the aftermath of Sandy's suicide, his newfound son Bruno, and a profound personal loss in his and Cleo's life, his team is called to a Sussex beach when an unidentified male body washes up dead in a barrel - the very same morning sees a Brighton football stadium receive a chilling anonymous demand and be faced with an impossible decision. Roy, who is at a match there bonding with Bruno, now finds himself locked in a frantic race to save hundreds of lives.