FBI Agent Gardner Camden is an analytical genius with an affinity for puzzles. He also has a blind spot on the human side of investigations, a blindness that sometimes even includes people in his own life, like his beloved seven-year-old daughter Camila. Gardner and his squad of brilliant yet quirky agents make up the Patterns and Recognition (PAR) unit, the FBI’s hidden edge, brought in for cases that no one else can solve. When DNA links a murder victim to a serial killer long presumed dead, the team springs into action.

Babs Dionne, proud Franco-American, doting grandmother, and vicious crime matriarch, rules her small town of Waterville, Maine, with an iron fist. She controls the flow of drugs into Little Canada with the help of her loyal lieutenants, girlfriends since they were teenagers, and her eldest daughter, Lori, a Marine vet struggling with addiction. When a drug kingpin discovers that his numbers are down in the upper northeast, he sends a malevolent force, known only as The Man, to investigate.

Happy Doll is a charming, if occasionally inexpert, private detective living just one sheer cliff drop beneath the Hollywood sign with his beloved half-Chihuahua half-Terrier, George. A veteran of both the Navy and LAPD, Doll supplements his meager income as a P.I. by working through the night at a local Thai spa that offers its clients a number of special services. Armed with his 16-inch steel telescopic baton, biting dry humor, and just a bit of a hero complex, the ex-cop sets out to protect the women who work there from clients who have trouble understanding the word "no".

When eldest son Roman Carruthers is summoned home after his father’s car accident, he finds his younger brother, Dante, in debt to dangerous criminals and his sister, Neveah, exhausted from holding the family—and the family business—together. Neveah and their father, who run the Carruthers Crematorium in the run-down central Virginia town of Jefferson Run, see death up close every day. But mortality draws even closer when it becomes clear that the crash that landed their father in a coma was no accident and Dante’s recklessness has placed them all in real danger.

Ten years ago, legendary author Riley Cannon produced three of the best-selling thriller novels of all-time. Then, she vanished, leaving the final three books of the saga unfinished and producing the biggest mystery in the history of publishing. Now, a decade later, there is word from her mega-agent, the glamorous and powerful Topaz Kennedy, that a new Cannon novel is all-but-finished. But, Topaz knows the truth: Riley Cannon hasn’t even started the book. With the clock counting down to the publication date, desperate measures are needed.