The protagonist of the series "Test of Loyalty" is a typical Russian housewife named Alevtina. Two decades ago, she put her personal interests and needs on the altar of family happiness. Ironing her husband's shirts, frying cutlets, reading her son's sheet music - these are her ordinary everyday tasks. Alevtina realizes that she is doing something wrong only when her beloved husband Seva leaves the family for his mistress Ksenia. At the same time, her son Sasha rebels against his mother's upbringing, and to top it all off, Alevtina's elderly mother passes away. Now the woman will have to learn to live anew.