On All Hallows' Eve, the night when the veil between the living and the dead is as thin as a soap bubble, Will McCurty, a knee-deep-in-average high school kid, discovers he has an incredible destiny.
A psychic ability passes to the firstborn in each generation of Will's family. His older brother is about to become a powerful medium. He'll bridge the veil to In Between allowing troubled spirits to use his body and his voice. In order to survive being possessed, every Bridge needs a partner, a Keeper.
The Keeper controls frantic ghosts so they don't abuse the Bridge's body, calming them enough to find out why they're stuck In Between. If all goes well, Bridge and Keeper then set things right in this world so the soul can pass on to the next. If all goes well.
Will has a choice that night. Becoming his brother's Keeper would mean he has to harbor secrets, lie to his best friend, and break his mother's heart.
But it's that or abandon his brother to the desperate dead.