Eager to come to terms with her friend's substance abuse, Norah decides to distract herself by writing the story of her great-grandparents. As Norah becomes caught up in the tales of her sleuthing great-grandparents and their adventures solving mysteries, the present starts to overlap. Soon Norah is caught up in a real-life mystery that could lead her to discover the truth behind her friend, Mariette's, addiction. As the pieces fall into place, the evidence points to the possibility of Mariette being drugged without her knowledge. As past and present collide, will Norah find the true culprit and will she be in time to prevent anyone else being hurt?