Thomas Pitt never expected to find such a find in the Bluegate Fields area, this London sewer. No, there are plenty of dead people here, and the police come across them often. But this time... A drowned teenager was discovered in the local underground sewer. Despite the complete lack of clothing, it immediately became clear that this was the scion of a decent and wealthy family - delicate features, delicate skin, sleek hands... Inspector Pitt cannot understand what the noble young man was doing in Bluegate Fields. But he was even more amazed by the results of a medical examination of the body. Among many other oddities, it was discovered that the teenager drowned not in the sewer, but in the bathtub and fell into the sewer later. Thomas Pitt had never encountered such an incident before. Where now to look for the killer - in the London slums or in the noble quarters? His wife Charlotte, as always, takes on high society...