When a bestselling celebrity biographer is no longer able to get published because she has fallen out of step with current tastes, she turns her art form to deception.

Uptight and straight-laced, FBI Special Agent Sarah Ashburn is a methodical investigator with a reputation for excellence–and hyper-arrogance. Shannon Mullins, one of Boston P.D.’s “finest,” is foul-mouthed and has a…