Twin sisters Marisa and Clare Stockton were sixteen when Clare’s body was found in Virginia’s James River. No arrests were made. Fourteen years later, Marisa’s friends and dedicated career as a photographer help her to cope with the open wound of the past. But Marisa still feels the hurt—and the unsolved murder isn’t the only thing haunting her. A recent car crash has erased ten days of Marisa’s memories—a black hole leading up to the accident that’s left her disoriented.

After multiple women go missing, Agent Melina Shepard of the Tennessee Bureau of Investigation makes the impulsive decision to go undercover as a prostitute. While working the street, she narrowly avoids becoming a serial killer’s latest victim; as much as it pains her to admit, she needs backup. Enter lone wolf FBI agent Jerrod Ramsey. Stonewalled by a lack of leads, he and Melina investigate a scene where a little girl has been found abandoned in a crashed vehicle.

At first, they struggle to escape. Then a torrent of blows rains down upon their bodies until their eyes cloud over in final agony. The killer shows no remorse - just a twisted need to witness each victim's last terrified moments. Public defender Rachel Wainwright is struggling to reopen a decades-old case, convinced that the wrong man is in prison. Homicide detective Deke Morgan doesn't want to agree. But if Rachel's hunch is correct, whoever fatally bludgeoned young, beautiful Annie Dawson 30 years ago could be the source of a new string of brutal slayings.

Seventeen-year-old Haley McWaid is a good girl, the pride of her suburban New Jersey family, captain of the lacrosse team, headed off to college next year with all the hopes and dreams her doting parents can pin on her. Which is why, when her mother wakes one morning to find that Haley never came home the night before, and three months quickly pass without word from the girl, the community assumes the worst.

At the grisly murder scene of a teen prostitute, Virginia state trooper Riley Tatum's past roars back to haunt her. When she was a teenage runaway, she was kidnapped, drugged, and left unconscious on the streets. She has no memories of what happened, only strange recurring dreams of two men playing cards. Former FBI agent Clay Bowman, Riley's old flame, is Shield Security's newest member. He's plagued by the unsolved case of a serial killer nicknamed the Shark who murdered girls as part of a sadistic poker game.