It's been six weeks since Halloween. Six weeks since Grace stumbled into the ER, almost dead and begging for help. Six weeks since she lost every single memory, including her own name.

Taken in by the mysterious Sisters of the Order of Saint Raphael the Healer, Grace's wounds are dressed and she is assured her memories will return—in time. But does Grace want her memories back? Maybe she's chosen to forget them, maybe there's a reason. The sisters hide things from her. They whisper things about her.

When a demon forces its way into the convent, it declares that Grace is a demon too. Grace demands answers. Answers that may reveal not only who she is, but that the sisters might not be who they say they are, either.