Katya is smart, modest and diligent, but most importantly, she is very convenient for others, which they use. After the death of her overprotective mother, Katya inherits her mother's late lover Andrey along with the house. Nikolaevich, who has nowhere else to live. However, this is not the main problem of our heroine. The secrets that her mother hid from Katya during her lifetime, the mortgage debt that could cause her to lose her home, and the mysterious man to whom her mother had been sending large sums for many years - Katya will have to deal with all this, and for the first time in her life, on her own.