Even before her divorce from her husband, investigative department employee Vera Berezhnaya became her boss’s mistress. There was no great passion, rather they were kept together by the force of habit... It all ended when a fake denunciation was written against Vera, and the boss did not even think of interceding. So she was demoted to district inspector... And soon there was a murder, after which someone planted the dead man’s keychain in Verin’s mailbox. She remembered: this is not the first such “gift”! Previously, among newspapers and receipts, Vera had already discovered strange objects: a comb with a switchblade, a man's tie... She was at a loss until the murdered man's neighbor, private detective Vladimir Nazarov, came to the rescue - a spark immediately jumped between him and Vera... He found out: the owners these things are no longer alive either! And among them is her ex-husband, lawyer Berezhnaya...