A big admirer of beautiful ladies, married to his second wife for the fourth time, Ilya Tsypkin invited former classmates Nadezhda Lebedeva and Alla Timofeeva to the restaurant. During dinner, someone called him on the phone, he went out for a while and ... disappeared. The offended girlfriends barely scraped together money to pay for the rich treat, and were terribly offended by Lyuska - that’s what they called Ilya from the time of school, with whom they were, as they say, like water. However, when Ilya's excited wife called Nadezhda the next morning and reported Tsypkin's disappearance, the amateur detective realized that something serious had happened. Having hardly convinced Alla to help her former classmate, Nadezhda again dragged her friend into a dangerous investigation ...The book was also published under the title "Two Ladies on a Guinean Diet."