The series is based on Harlan Coben's work. The action takes place in a wealthy suburb where the local population leads a peaceful life and has close neighborly relationships with each other. Everything changes when 18-year-old Adam mysteriously disappears. The alarm among the residents intensifies, and the anxious parents are willing to do anything to protect their children. Meanwhile, the teenagers on the brink of adulthood decide to take matters into their own hands and uncover the truth.