After losing a card game to Las Vegas gangster Danton, Kat McKay is kidnapped, and her heart removed from her chest.
Bizarrely, Kat wakes up with a newfound power: she can see the dead. Together with a motley crew of criminal ghosts, including mobster Clint, stage magician Melchior and hitman Jack The Knife, she sets on a quest to restore their freedom — and her heart.
But who is worthy of her trust, and can she regain what was taken from her?