Lucinda “Luce” Price is a seventeen-year-old girl who has a dark secret: she can see shadows that haunt her wherever she goes. She is sent to Sword & Cross, a reform school for troubled teens, after she is blamed for the death of her boyfriend in a mysterious fire. There, she meets Daniel Grigori, a handsome and mysterious boy who seems to know her from before. She feels an instant attraction to him, but he acts cold and distant towards her. She also meets Cam Briel, another charming and charismatic boy who shows interest in her. She soon finds herself torn between the two boys, unaware that they are both fallen angels who have been fighting over her for centuries. Luce is the reincarnation of Daniel’s true love, who died in the original fall from Heaven. Every time they meet, they fall in love, but she always dies on her seventeenth birthday. Daniel has been trying to break the curse that binds them, while Cam has been trying to make her choose him instead.