With or Without You (2005)

With or Without You, a wickedly crafted whydunit, delves into the angst-ridden mind of Lillian Speck, an 18-year-old whose loneliness and sexual confusion fuel her unrequited love for soap star Brooke Harrison, whom she kills in cold blood. Author Lauren Sanders shows a surprising ability to simultaneously make you feel infuriated with and sorry for her borderline-schizo heroine. Thanks to Lily's harrowingly detached tales of parental neglect and prison abuse, none of your emotions will emerge unscathed.