Can a stranger share your memories? That's the question that haunts Brenna Spector when she first sees footage of missing webcam performer Lula Belle. Naked but hidden in shadow, the "performance artist" shares her deepest, darkest secrets with her unseen male audience... secrets that, to Brenna, are chillingly familiar. Brenna has perfect memory, able to recall in astonishing detail every moment of every day of her adult life. But her childhood—those carefree years before the traumatic disappearance of her sister, Clea—is frustratingly vague. When Brenna listens to the stories Lula Belle tells her audience, stories only Brenna and Clea could know, those years come to life again in vivid detail. Convinced the missing internet performer has ties to her sister, Brenna takes the case—and in her quest for Lula Belle unravels a web of obsession, sex, guilt, and murder that could regain her family... or cost her life.