Thirteen-year-old Lainey Emerson is the middle child in a home police are already familiar with: her mother works too much and her stepfather favors his own blood over another man’s problems—namely Lainey and her wild older sister, Liza. So when Lainey does not come home from a Friday night out with her friends, it is dismissed by the Coral Springs P.D. as just another disillusioned South Florida teen running away from suburban drama and an unhappy home life.