Who would have thought that unknown people would covet the apartment of the head teacher of a high school?! The apartment of her sister, the owner of an elite restaurant, was much more interesting! The sisters were not close: Larisa Kotova bathes in luxury, and Tatyana leads a more than modest lifestyle. But Larisa comes to her sister’s aid: the matter turned out to be not as simple as it seemed at first. Deciding to drink coffee, the sisters discover in the Pele Royale jar... antique coins of considerable value! Larisa is intrigued. Where did this can of coffee come from, accidentally discovered on the balcony? Who owns the coins? And is the robbery of her sister’s apartment connected with them? Trying to resolve these issues, Larisa finds herself in the world of antique dealers and thieves...