15 Underrated Mystery and Thriller Novels That (Warning!) Will Make It Hard to Sleep Tonight

Heidi Wood feels bad for a teenage girl and her baby who she sees on the train. Since she is charitable by nature, she decides to bring Willow and her four-month-old baby home for a night's sleep. Her family is concerned — she could be a criminal — but Heidi is determined to help her. As she learns more about Willow, secrets start to emerge, and Heidi's act of kindness quickly spirals into a situation that is twisted and beyond her control. Mary Kubica's Pretty Baby is a psychological thriller at its best!