Cassandra O'Grady is pulled into another dangerous situation when her college classmate Myra shows up at her house in ghostly form. Myra's last memory was a crazy night at a rave party. They quickly learn Myra's not dead but she is in a coma and hanging on for her life. She's been poisoned and unless they can discover the type of poison she could die. As Cassandra looks into the clues that could save her friend's life she uncovers a far more sinister plot. The poisonings and murders are connected to a dark magic ritual that promises to bring the dead back from purgatory. With the help of some ghostly friends, Cassie breaks the case wide open, but will she live to tell the tale and save her friend? And if she does will she be able to explain how she knows what she knows without giving away her secret?