In 1906 two carriages arrive at Oddsen End, the estate of Lord and Lady Pilkington, each bearing an orphaned infant girl. In the first, Houndstooth, the butler, arrives with Pandora, daughter of the Pilkingtons oldest son. Her parents died in Africa. In the second is Lady Pilkington with Minnie, from a convent in Bavaria, to be a companion for Pandora. The tiny infants bear strong resemblance and skullduggery abounds! Members of the household switch them in their cradles for various reasons until no one knows whos who. The girls grow up, Pandora the heiress apparent, and Minnie apparently the maid.

Lady Pilkington lost her estate through a forced marriage. If Lord Pilkington dies first, the estate is hers and she names her heir. If she dies first, he does. Their second son, Henry, is their spare, but he holds no hope of inheriting. Then, during a wedding party, Lord Pilkington takes a catastrophic fall down the main staircase and later, Lady Pilkington is found dead on the floor of the wine cellar. Were they pushed? Who died first?

Enter Detective Inspector Gotchas of the Flitwick Police. He and Houndstooth will sort things out and set things straight. Or will they?