A case of mistaken identity! A murder at a fancy dress party! A manor house with a mysterious secret! That simply isn't cricket.

This week, Paddy and Tricia follow The Doctor and his friends as they land in 1920's England and find themselves whisked away to a country estate to help out in a charity event. Things soon take a dark turn and The Doctor must figure out what they have to do with the fabled Black Orchid.