Detective Salvatore is used to his mundane bachelor lifestyle, until Katherine crashes into his life. Homeless, on the run and afraid, Damon vows to help Katherine, but there's more to her than meets the eye. When Katherine unexpectedly disappears, Damon's left behind to uncover the mystery surrounding her and unravel over a decade of secrets. (AU, Datherine/Stelena/Defan/Kelena).