Beth, Joanne, and Megan meet in college under the usual circumstances. Beth and Joanne in the bookstore, and Megan when they rescue her after she dumps an entire tray of food over a crowd. The three quickly become inseparable, and remain so for their entire lives. However, on the night of graduation, things take a turn for the worse. The trio decide to have a girls’ night and they visit a bar. A few hours go by, and Beth realizes she can’t find Megan. She searches out Joanne, and they return to the rented bungalow in hopes of finding Megan. What they find instead is a nightmare. Megan, with her dress torn, scratches and bruises everywhere, and utterly distraught. She swears the other two to secrecy, and they attempt to move on with their lives.
Beth becomes a detective in the sex crimes unit, Megan becomes a prosecutor, and Joanne develops a life of luxury in “public relations”. That one girl’s night changed everything in their lives. But as things unravel, secrets are revealed that destroys each woman’s life thread by thread. Just goes to show, you never really know your friends.