One evening in a restaurant there is an attempt on the life of businessman Sandalov. The shooter - his own security guard - is caught red-handed, with a pistol in his hand. It seems that everything is clear, but... Who ordered the failed murder? And will there be other assassination attempts? And the mother of the “criminal” is convinced that her son was framed, that he is not capable of murder. So private detective Tatyana Ivanova receives two tasks at once, to which a third is soon added - to find the one who stole a huge amount of money from Sandalov’s safe. Unraveling the tangle of intrigue is all the more difficult for her because she has to play the role of a stupid rich widow who wants to become a cool businesswoman...