Private detective Tatyana Ivanova did not even think about taking on a new investigation, she just went to a restaurant to have dinner with an acquaintance, but... One of the visitors was killed - a certain Sergei Perfilyev. Nothing criminal is found in his past, except for one long-standing, unpleasant story related to work. Tatyana immediately identifies the person who stabbed Sergei, but who sent the killer who killed him to the next world?.. And most importantly, where is the money that all his friends are talking about in connection with Perfilyev’s death, and was there any at all?..