When the bodies start piling up, Detective Moon is feeling the pressure from her Lieutenant to get the case solved. Between her partner acting strange and Austin, her boyfriend on the K9 team, secrets unravel around her and those of her past. The murders resemble a case that is with the FBI. Carolina decides to bring in her friend, Ally, from the FBI. The truth is realized, and Carolina knows the killer is close by. As Carolina unravels her past and the people close to her, she must do what she can to catch the killer before he kills again.