After her best friend drinks a bottle of industrial-strength cleaner alone in a motel room, Cody travels to Tacoma to pack up Meg's college room. Investigating her friend's final days, Cody uncovers mysterious emails on Meg's computer, eventually leading her to an online suicide "support" group and the anonymous person who encouraged Meg. But as Cody follows in Meg's footsteps--befriending her friends, putting on her suicidal urges, falling for her former lover--how can she know when she's gone too far?