A luxurious cloak embroidered with gold and diamonds was stolen from a famous Spanish tenor who came to an opera festival. And the performance in which he is supposed to perform will take place in three days. The city's best private detective, Tatyana Ivanova, suspects costume designer Jose, who disappeared at the same time as his precious props. True, he left a strange note at parting. Having gone to the address indicated in the message, Tanya finds five corpses and an FSB ambush there. It turns out that the cloak, in addition to gold and diamonds, was literally stuffed with drugs...