The Girl on the Train

*The Girl on the Train* is a psychological thriller novel by Paula Hawkins, centered around Rachel, an unreliable narrator who commutes daily and becomes obsessed with a seemingly perfect couple she observes from her train. When the woman disappears, Rachel becomes involved in the investigation, uncovering hidden secrets, lies, and her own troubled past. The story explores themes of perception, memory, and deception, revealing how personal struggles and distortions can influence reality. The novel emphasizes the complex nature of human relationships and the danger of assumptions, ultimately highlighting the blurred lines between perception and truth.