The weak, defenseless and naive Muscovite Tatiana Semenova decides to take revenge on the insurance corporation 'Grand-Garant', which unjustly refused to pay insurance to her seriously ill father. Tatiana knows full well that revenge is a dish 'served cold', but she is determined to act as soon as possible. The heroine 'infiltrates' the above-mentioned corporation and gradually, miraculously takes over it. 'Along the way', falling in love with her main enemy, president of 'Grand Garant Insurance Co.' - Gennady Molchanov.