Grayson Manor Haunting

When Addison Lockhart inherits Grayson Manor after her mother's untimely death, she unlocks a secret that's been kept hidden for over fifty years. For Addison, it seems like she's finally found the house of her dreams, until the spirit of Roxanne Rafferty comes to call. Who is Roxanne, why is she haunting Grayson Manor, and how will Addison's connection reveal a secret to her own past that she thought no longer existed?