Cady Garrett can't help but be shaken when next door neighbor, Ethan, shows up in the nick of time to save her from a ruthless killer, spouting mumbo jumbo. Even more disturbed when the killer slits his own throat to escape Ethan after a vicious struggle. Curiously, Ethan insists on leaving before the dead killer returns, even though he can barely stand on his feet. Nursing him back to health, Cady is drawn into a world of half truths and mysteries, where shadows hide more than the seedy underbelly of San Francisco's Tenderloin district. She has become the obsession of a darker power, and no one, not even Ethan, can keep her safe from his twisted desires.