The No. 1 Ladies' Detective Agency gets backed into accepting competing clients in the same case. The first is Special Pest Services owner Mr. Excellence Modise, who wants the agency to confirm his fears that his wife is cheating on him. The second is Mr. Freddie Mogorosi, the owner of a big franchise garage who wants to persuade Tlokweng Road Speedy Motors owner Mr. J.L.B. Matekoni, the husband of agency founder Mma Precious Ramotswe, to join a trade association to establish and enforce professional standards. The conflict arises when Mma Ramotswe and Charlie, the assistant who's not quite a mechanic and not quite an investigator, shadow Aleseng Modise and find her in a compromising situation that's not so compromising after all; she claims her husband's the one who's cheating on her and asks Mma Ramotswe to accept her as a client as well.
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