One bright morning, Precious Ramotswe – head of Botswana s No. 1 Ladies Detective Agency – receives a visitor: a woman from Australia. This woman asks Precious to take on a case: to find the nursemaid who raised her during her childhood in Botswana. The woman wants to thank her for being such an important part of her life. Precious has a history of successfully solving cases, but this one proves difficult and throws up a number of surprises and challenges.