The girl on train

The Girl on the Train is a psychological thriller novel by Paula Hawkins about a woman who becomes involved in a missing persons investigation after seeing something shocking on the train

Plot

The story follows Rachel Watson, a divorced woman who takes the train to work in London and becomes obsessed with a couple she sees from the train. She creates a fantasy life for the couple, named Jess and Jason, and feels like she knows them. When Megan, the woman in the couple, goes missing, Rachel becomes involved in the investigation and uncovers dark secrets