Can past family secrets stop a cold-blooded serial killer?

Starling Police Department K9 Sergeant Charlotte Rinning finds herself in the crosshairs of a wild case.

As the killer turns their sights on her, the stakes have never been higher. Her entire life starts to become public knowledge. But when her sealed medical history is revealed, a past secret comes out and almost destroys her entire world. Now forced on the sidelines, Char wants nothing more than to help the team before someone closer to her is next. Can she help the team, or will her secrets and past make things worse to where there’s no turning back?