The Girl on the Train, written by Paula Hawkins, is a gripping psychological crime mystery that explores the blurred lines between truth and perception. The story follows Rachel Watson, a troubled woman who becomes obsessed with a seemingly perfect couple she observes from her daily train commute. When the woman goes missing, Rachel becomes entangled in the investigation, uncovering her own dark secrets along the way. With its unreliable narrator and intricate storytelling, The Girl on the Train keeps readers guessing and questioning the reliability of memory and perception.