One Bloody Fingerprint (S05E07)

Upon returning to her Tennessee campus, a college student is devastated to discover her roommate, Heather Maples, brutally murdered in her bed. Heather, known for her vibrant personality and numerous friendships, becomes the center of a chilling investigation. As authorities delve into the case, they uncover a troubling possibility: on August 7, 2015, one of Heather's closest friends may have transformed into her most dangerous adversary.