At the No. 1 Ladies' Detective Agency in Botswana, Mma Ramotswe is contacted by an American lawyer hoping to find a safari guide who is a beneficiary of his client's will. She is also asked by a friend to find out if her husband is cheating. At the same time, Assistant Detective Grace Makutsi must cope when her fiance suffers a serious accident and is taken in by his domineering aunt, who refuses to let Mma Makutsi see him. The two detectives leave their troubles behind and travel north to safari country to resolve their case. As usual in this charming series, the mystery takes a back seat to the delightful cast of characters inhabiting the beautiful land of Botswana.