Months on from his last investigation, and with Grace's team still reeling from the fallout, Roy must prove that a wealthy Brighton businessman has brutally murdered his wife.

When a body is dredged up from the seabed of the English Channel, it sets in motion a truly disturbing investigation which forces Grace to ask himself just how far anyone might go to save the ones they love.

Grace and his team are called to the site of a tragic road traffic collision involving three vehicles: an articulated lorry, a car and a blue pickup truck. An unexpected discovery at the scene, found on the victim, soon suggests there could be far more to this particular accident than meets the eye, sparking an unsettling chain of events which leads Grace and Branson on a tense, desperate game of cat and mouse through the city of Brighton to save an innocent life before time runs out.

A rising music star, Gaia Lafayette, receives the opportunity of a lifetime, and the same night that she excitedly announces to her devoted fans that she and her band are headed to LA, a shocking turn of events leads Grace and Branson to believe someone may be trying to harm her. With a perpetrator on the loose, Roy must deduce who of Gaia’s fanbase may be concealing sinister intentions. Meanwhile, a grisly discovery on a remote Sussex pig farm puts Roy under serious pressure, forcing him to split his team in order to investigate two impossible lines of enquiry.