In the early years of Saturday, 17 December 2011, Zoe Nolan, a nineteen-year-old Manchester University student, walked out of a party taking place in the shared accommodation where she had been living for three months. She was never seen again. Seven years after her disappearance, struggling writer Evelyn Mitchell finds herself drawn into the mystery. Through interviews with Zoe's closest friends and family, she begins piecing together what really happened in 2011. But where some versions of events overlap, aligning perfectly with one another, others stand in stark contrast, giving rise to troubling inconsistencies. Shaken by revelations of Zoe's secret life, and stalked by a figure from the shadows, Evelyn turns to crime writer Joseph Knox to help make sense of a case where everyone has something to hide. Zoe Nolan may be missing, presumed dead, but her story is only just beginning.