We are but dust and shadows is the motto on the sundial in the garden at Blackthorn Manor. The past haunts the family living there. When Robert Landimor, a famous painter, dies suddenly, he leaves his estate, including Blackthorn Manor, to his housekeeper, Mary, disinheriting his three daughters, Lucia, Izzy, and Sara in the process. No one understands why. Sara attempts to find answers, but only uncovers buried secrets about their father and his family instead. Then, the body of a woman is discovered in the lake on the Manor's grounds, leaving Sara and her sisters to face terrible danger. Ghosts and the past may not be the only things haunting their family.