Major of the investigative department and psychologist Elena Fedorishina is absorbed in her work and doesn't notice that her family is falling apart. Having found her husband, Colonel Fedorishin with his mistress at the workplace, she decides to file for divorce and move to another city. She moves in with her sister and gets a job in the department of her former admirer Mikhail, who has been familiar since her student days, and joins his investigation team. She proves to be very keen and observant in her work, solving the crimes that others in her department cannot. Along the way she gains the affection of another detective, major Dergach, who works with her. They mutually help each other in their field work, even if it means breaking the laws to prove someone's innocence. Their boss Mikhail, also in love with her, fights their affection and competes for her love.—AP