Isabella lives a quiet, controlled life, believing goodness will protect her from chaos. Pero lahat ng 'yon ay nabago nung nakilala niya is Lucian Valez, a man tied to a dangerous world and a past that secretly connects them. He was supposed to watch her. He wasn't supposed to want her. But the closer she gets, the more she becomes the one thing he can't control, and the only sin he's willing to keep.