Along the ever-changing border of gentrifying Los Angeles, 17-year-old Monique Dowler is found dead at a condominium construction site, hanging in the closet of an unfinished unit. Homicide detective Elouise "Lou" Norton's new partner, Colin Taggert, fresh from the comparatively bucolic Colorado Springs police department, assumes it's a teenage suicide. Lou isn't buying the easy explanation.

For one thing, the condo site is owned by Napoleon Crase, a self-made millionaire…and the man who may have murdered Lou's missing sister, Tori, 30 years ago. As Lou investigates the death of Monique Darson, she uncovers undeniable links between the two cases. But her department is skeptical.

Lou is convinced that when she solves Monique's case she will finally bring her lost sister home. But as she gets closer to the truth, she also gets closer to a violent killer. After all this time, can he be brought to justice… before Lou becomes his next victim?