1968: Actress Gemma Turner once dreamed of stardom. Unfortunately, she’s on the cusp of slipping into obscurity. When she’s offered the lead in a radical new horror film, L’Etrange Lune, Gemma believes her luck has finally changed. It’s her last chance to achieve her dream—but that dream is about to derail her life. One night, Gemma disappears on set and is never seen again. Yet, Gemma is still alive. She’s been transported into the film and the script—and the monsters within it—are coming to life. 2015: Gemma Turner’s disappearance is one of film history’s greatest mysteries—one that’s haunted film student Christopher Kent ever since he saw his first screening of L’Etrange Lune. The screenings only happen once a decade and each time there is new, impossible footage of Gemma long after she vanished. Desperate to discover the truth, Christopher risks losing himself.