Olga Boykova, editor-in-chief of the Witness newspaper, gives a vacation to her secretary and friend Marina, who has once again fallen in love. At the same time, several daring robberies of exchange offices and jewelry stores take place in the city. The police are unable to trace the criminals. Suddenly, the newspaper courier reports that his acquaintance, former criminal Konstantin, has decided to give up crime and is afraid that these robberies will be “pinned” on him. But the guy is unexpectedly killed. However, Olga continues the investigation. And imagine her surprise when it turns out that the gullible Marina is also involved in this matter, although not out of malice, but out of naivety.