Detective Billy Harney is back, this time investigating a notorious Chicago drug ring along with his sister, Detective Patti Harney. Billy's partner Kate has spent months infiltrating the cartel when suddenly several of its members turn up dead, Kate's cover is blown, and a key informant disappears. Now the cartel is hell-bent on retrieving a mysterious "black book": the ledger containing the list of high-profile clients.

The more Billy investigates what's in the black book, the more he's pulled into dangerous network of corrupt politicians, vengeful billionaires, and violent, dark web conspiracies. Billy realizes there's no one he can trust, and every step closer to the truth pushes his family closer to danger.

The Coldest Case is Patterson's first audio-only thriller, and Audible has filled it with a fully immersive sound design, lightning fast pace, and powerful performances in every role. Each chapter ends with a jaw-dropping cliffhanger, making The Coldest Case one hell of a ride.

The stunning cast includes three-time Emmy winner Aaron Paul (Breaking Bad), Krysten Ritter (Marvel's Jessica Jones), Nathalie Emmanuel (Game of Thrones), Golden Globe and Emmy winner Beau Bridges, Emmy winner Alexis Bledel (Gilmore Girls, The Handmaid's Tale) and Mark-Paul Gosselaar (Saved by the Bell, Franklin & Bash). Patterson collaborated with writers and Executive Producers Aaron Tracy of Friendly Heights (Law & Order: SVU, Sequestered) and Ryan Silbert of Origin Story Entertainment (Stan Lee's Alliances: A Trick of Light, The Girl is in Trouble).