HOLD FAST opens at an LAPD Christmas party where the victim is found shot to death in a party dress outside the restaurant. An inspection of her locker reveals a stack of nude and semi-nude Polaroid photos of male police officers, including a photo of Shea's homicide unit at a recent crime scene. Shea is confronted with the possibility the victim was blackmailing officers and preparing to target a detective in Shea's unit. Robbery Homicide Division settles into a theory of suicide when the case begins to run cold, but Shea refuses to accept this explanation. Her tenacious investigation puts her in the cross hairs of personal and professional danger. Shea's outlook on men, crime, and danger has been hardened by over 10 years of rising through the ranks in an era when female police officers were an unwelcome novelty in the LAPD. Shea earned her position as one of the Department's few female homicide detectives by solving one case after another, through exquisitely honed interrogations skills, and by never taking no for an answer. While walking the thin blue line of her dangerous profession, she walks an equally thin line in her personal life. Involved with a married, hero-cop, she is forced to confront what happens when the lines between work and home blur in a violent confrontation.