The tale of sisters Anna and Della Burnside is less one of separated at birth than inseparable since birth. The identical twins (below) have just been made partners in the same month, Anna in the private client department of Penningtons and Della, an intellectual property litigator, at Osborne Clarke. They both gained identical A-level grades in the same subjects, studied law at the same university and then attended the Guildford College of Law at the same time - and in both cases again obtained identical grades and qualified as solicitors on the same day, at different firms but within five minutes of each other. In the picture, they are also wearing virtually identical clothes, the same earrings and virtually the same shade of lipstick. Tulkinghorn wonders whether even their respective managing partners can tell them apart?