Mma Ramotswe is the proud proprietor of the finest ladies detective agency in all Botswana, also the only one. When clients come along, whether it is to enquire after a missing spouse or to check the identity of a long-lost father, it is not The Principles of Private Detection that helps her to sp ve cases but old-fashioned common sense and a warm-hearted understanding of the fallibity of human nature - especially that of men.