Gracie doesn't know she's a Soul Protector. After being dragged on a night out to celebrate a friend's birthday, she discovers she can switch into other people's bodies. Within minutes she manages to switch back, but doubting her sanity, decides to keep it to herself until she can work out why it happened. On a second switch, unaware she has a visible aura, she gets abducted by a monitor, Dan. It's his job to hunt down corrupt Soul Protectors who steal bodies for their own benefit. Once he establishes Gracie is innocent, he helps her switch back and looks after her during recovery. Dan explains to Gracie how Soul Protectors are bound by a code to only switch for the benefit of vulnerable people. Gracie falls in love with Dan, but finds he has hang-ups of his own. Finally understanding the rules, Gracie switches for a third time to help someone in need. During this switch her past catches up with her, and a chain of events unfold which shock her to the core.