A Brighton crime overlord is on trial for conspiracy to murder, following the death of a rival crime family boss. As the jury files into court, one person sits in the public gallery secretly filming them. Later, a computer-savvy colleague produces the names, ages, and addresses of each of the 12 jurors. The accused’s henchmen need to influence two of them—a jury can convict if directed on a 10-2 majority verdict but no less. But which two? One emerges as the front runner: Sarah Hope, Foreman of the jury. Her daughter is backpacking in a remote area of Ecuador. Sarah gets sent a series of aerial photos of her daughter, along with with the coordinates of her position, and a stark message. A second juror, an outwardly respectable lawyer,  is photographed in a dominatrix dungeon. If he doesn't want the photographs made public, all he has to do is ensure the accused walks free. When Roy Grace is called in to investigate a murder that has links to the accused and the trial, he finds the reach and power of the accused’s tentacles go higher than he had ever imagined.