Spring... The sun is warming up, the birds are chirping, the leaves are blooming, you want love... But private detective Tatyana Ivanova has no time for the joys of spring - she tirelessly rushes around the city, keeping an eye on Nastya Zhuravleva’s friends, friends of friends and friends of friends. And all because Nastya died unexpectedly. Common food poisoning? Can't be! Nastya’s husband and Tatiana’s new client think so. And she herself doubts the normality of what happened. But all the suspicions that arise crumble to dust: there is no evidence against any of those she is watching, but they all have an alibi. And it turns out there were two victims - Nastin’s old acquaintance, businessman Anton Semenov, also died that day from poisoning...