Frida, the young wife of Colonel Ziganshin, decided to give birth in the same hospital where she worked. She was healthy, and so was the child, but the doctor made an unforgivable mistake by overlooking the problem. The child died, Frida miraculously survived after a hours-long operation and could no longer become a mother. Why does a man in the prime of life need such a woman? She needs to be replaced with a normal one as soon as possible, have children with her and live in well-deserved happiness. The compassionate love of the kind Ziganshin, Frida is sure, will soon end. What will happen first - will he begin to take revenge on the criminal doctor or change his wife to a full-fledged one?