The Girl on the Train by Paula Hawkins is a gripping psychological thriller that will keep you guessing. The story follows Rachel Watson, a woman who becomes obsessed with a couple she sees from her train window every day. When the woman goes missing, Rachel becomes entangled in the investigation and starts to uncover dark secrets. With its unreliable narrator and twisty plot, The Girl on the Train is a suspenseful and atmospheric read that explores themes of memory, obsession, and the blurred lines between truth and fiction.