Before the inseparable Alla and Rita had time to get out of the same scrape, life threw them another “surprise” - their best friend dies under strange circumstances. The police are sure that there was an accident, but the girls do not believe such a story. In addition, in their amateurish investigation, facts come up every now and then that will drive even a seasoned investigator into a dead end, not to mention two self-taught detectives... But no matter how much the rope twists, the end is visible... And Alla and Rita are able to properly pull the this rope to unwind a whole tangle of mysterious stories, incredible mysteries and unusual incidents...