Everyone has secrets, and it's Diana Kane's job to know them. It's a talent-being able to see into someone's life from the scuffs on their shoes to the way they hold their hands-a talent that sets her apart from everyone else. But when a mysterious stranger drops into her life with an impossible claim about Diana's past and inexplicable photos of a woman who shares her face, she is forced to piece together the truth that her entire life has been manufactured, along with fourteen other women who share her exact DNA. Confronted with the troubling reality that she's nothing more than a research experiment that went too far and a corporation that wants to erase all of them, Diana must rescue herself and the others, putting her skills to the test in the ultimate game of survival.