Marissa Rooney stands in her daughter's empty dorm room, a half-used vial of insulin clutched in her trembling hand. Brooke has been missing for days. Her roommate hasn't seen her since that night in the bar. And if Marissa has Brooke's insulin, it means that Brooke does not. But Marissa isn't alone in her terror. A phantom from her past is lurking in the shadows, waiting in the night, and holding her family captive...in the dark.

Becky Kincaid ventures out in the middle of a snowstorm to buy a car seat for her unborn baby and never makes it home. When a second pregnant woman disappears, Marissa Rooney and the team at the Holt Foundation fear a sinister motive lurks behind the crimes. Lead investigator Seth Crawford desperately searches for the thread that binds the two cases together, knowing that if he fails, another woman will soon be gone. While Seth hunts for clues, a madman has Marissa in his sights and she carries a secret that could tear her whole world apart. Can Seth stop the killer before he reaps his...dark harvest?