Storyline. Sara, a college student who was slandered by a classmate, finds herself framed for murder by Alex, who initially proposed the perfect, untraceable crime. Plot Summary | Add Synopsis. The Girl on the Train is the story of Rachel Watson's life post-divorce. Every day, she takes the train in to work in New York, and every day the train passes by her old house. The house she lived in with her husband, who still lives there, with his new wife and child. As she attempts to not focus on her pain, she starts watching . Drama . Storyline. The Girl in the Book charts the journey of young woman's transformation. At the outset, Alice Harvey is a lost and self-destructive 29 year old girl unable to write, too damaged for love. When her past invades her present and forces her to confront painful memories, she shatters. Helped by her friend and a new love.