Lyusya Suvorova and her friend Petrik successfully combine the pleasant with the useful: they come to a seaside settlement to hold another meeting of the women’s club "Doris," where both of them work under the guidance of Dora, Lyusya’s friend from the university. The work isn’t burdensome at all, so everything goes well—until the friends, going on a sea walk, notice an empty boat.
It turns out that its passengers tried to go diving with an aqualung but, not knowing how to use it, died. And later it was discovered that this old acquaintance of Lyusya and Petrik was businessman Afanasyev—and they simply couldn’t stay aside. After all, there are serious suspicions that the businessman and his lover were helped to drown!
The funny detectives of Elena Logunova are exciting intrigues, cheerful adventures, and brilliant authorial humor. Her heroines easily and elegantly unravel ingenious crimes, always remaining the most charming and attractive!