Scotland 1832. After enjoying a holiday with her family, Lady Kiera Darby is looking forward to attending the Duchess of Bowmont's annual Twelfth Night party. When she arrives, the family appears to be under some kind of strain. Matters swiftly turn downright deadly when the merrymakers stumble upon a decomposing man's body in the castle's crypt. It is evident the man met with foul play, and now Kiera must examine the facts, soon discovering just how deep the killer is willing to dig to keep their secrets from ever seeing the light of day.