Police officer Pavel Kuritsyn immediately realized that his daring mother Vasilisa Olegovna had again gotten involved in some kind of crime. Otherwise, why did she need to ask him... to wash his bulletproof vest? Or better yet, two... The second one was probably intended for her friend Lyumila Petukhova. Fortunately, Pavel did not know that his mother was also going to ask him for the gun... to clean it, otherwise he would have locked the irrepressible women with ten padlocks. For now, he only forbade them to pry into any investigations... But in reality it was like this: the girlfriend was attacked by a dog. And her owner Rimma, to make amends, invited Lyusya and Vasya to visit. Something was clearly wrong here, the home-grown detectives felt. But maybe it will work out? It seems that she is a nice girl, and her dog is fine - but she still has a bad feeling... And so it happened, her sense of smell did not disappoint! They found Rimma dead!..