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"Adult psychological thriller by a female author. Narrator is in her 30s looking back at a rooftop party from her teens where a friend was shot during a live band performance. She was the group's photographer and was suspected because she'd argued with the victim after kissing her boyfriend. Years later she reconnects with old friends, discovers her former best friend was actually the killer, and that she'd changed her identity with plastic surgery. The killer drugs the narrator, and the novel ends with the narrator in the hospital with amnesia while the killer sits beside her. Hardcover had an illustrated red-and-black rooftop cover. I think the author last name ended in miller"