Miami Assistant State Attorney C.J. Townsend finds herself living a nightmare, beginning with a call to go to the homicide scene of Victor Chavez, a cop who helped her convict serial killer William Bantling.

After thirteen-year-old Lainey Emerson disappears after a Friday night out with her friends, Special Agent Bobby Dees, who is still haunted by the unsolved disappearance of his own daughter, fears that she may be the victim of an online predator.