Years ago, Beth Lathrop and her sister Kate suffered what they thought would be the worst tragedy of their lives the night both the famous painting Moonlight and their mother were taken. The detective assigned to the case, Conor Reid, swore to protect the sisters from then on. Beth moved on, throwing herself fully into the art world, running the family gallery, and raising a beautiful daughter with her husband Pete. Kate, instead, retreated into herself and took to the skies as a pilot, always on the run. When Beth is found strangled in her home, and Moonlight goes missing again, Detective Reid can't help but feel a sense of deja vu.