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

For 15 years, Rachel Cunningham has chosen to lock herself away in a psychiatric facility, as torturous gaps in her memory have her believing that she is responsible for her parents' death. But after learning something new about their murders, she decides to return to her family's former log cabin in the remote forest of Michigan to uncover what really happened. However, someone doesn't want her to discover the truth — and she might find out that home is the most dangerous place of all. The Wicked Sister by Karen Dionne is a gripping read that will have you sleeping with one eye open.