Summary
The Girl on the Train, Paula Hawkins's debut psychological thriller, took the literary world by storm upon its release in 2015. Told through the eyes of three unreliable female narrators, the story gripped readers with its exploration of memory, addiction, and domestic violence. Acclaimed for its taut pacing, intricate plotting, and insightful portrayal of its deeply flawed characters, The Girl on the Train sold more than 23 million copies worldwide. Its success led to a high-profile film adaptation, directed by Tate Taylor and starring Emily Blunt as the troubled protagonist Rachel Watson, in 2016.
Plot
Rachel Watson, a 33-year-old alcoholic, takes the same commuter train every day, passing by her old house where her ex-husband, Tom, now lives with his new wife, Anna, and their baby. During her daily journey, Rachel becomes fascinated with a couple she observes from the train, whom she names “Jess” and “Jason." She imagines their life as perfect, in stark contrast to her own troubled existence.
One day, Rachel witnesses something shocking involving “Jess," whose real name is Megan Hipwell. The next day, Rachel wakes up with injuries and no memory of the previous night, only to learn that Megan has gone missing. Driven by her obsession with the couple and her own sense of guilt, Rachel inserts herself into the investigation, lying to the police and Megan's husband, Scott, about her connection to them.
As Rachel delves deeper into the mystery, she uncovers dark secrets about Megan's life, including an affair with her therapist, Dr. Kamal Abdic. Meanwhile, Rachel's own memories of the night Megan disappeared begin to resurface, revealing a complex web of relationships and betrayals. She realizes that her ex-husband may be involved in Megan's disappearance. What’s more, Tom has been gaslighting Rachel for years, manipulating her perception of reality.
The truth eventually comes to light—Tom had been having an affair with Megan and killed her when she threatened to reveal she was pregnant with his child. In a climactic confrontation, Rachel and Anna join forces against Tom. Rachel stabs him with a corkscrew in self-defense, and Anna helps ensure his death. The two women corroborate each other's stories to the police, explaining their actions as self-defense. In the aftermath, Rachel decides to quit drinking and move forward with her life, finally free from Tom's manipulation and her own self-destructive behavior.