In every person's life there is a moment which uniquely defines him or her. A moment that divides life into "before" and "after", a single point in their lives which will change them forever-a threshold moment which, once the threshold is crossed, completely changes everything about a person. For Wendy Calloway, a one-time vocalist recovering from the hellish car accident that claimed her mother's life and her father's mind, the greatest "threshold moment" of her life is the moment in which her life is ended. Slain by the diabolical serial murderer known as the "Squeeze Killer", Wendy finds herself catapulted into the "unseen world", now a disoriented, disembodied spirit who must come to terms with her afterlife before she can succumb to the overwhelming desire to mete out justice to her killer.