Natalia's birthday, a holiday that began as a bright and beautiful celebration, ended in a real tragedy - the younger sister of the owner of the house, Polina, was killed. Who could have bothered the pure and naive girl, what secrets she kept, that she was mercilessly shot at the gate of the house when she went out to walk the dog. Investigator Sergei Vinnik, together with his lawyer friend Ksenia, are drawn into the investigation, because Polina put on someone else’s jacket before her death, and she could have been killed by a terrible mistake... Alla Kholod is a professional journalist. The dramatic stories underlying the plots of her books are fictional, but far from fantastic. They are about people living in modern Russia, neither good nor bad - complex, torn by passions, sometimes helpless in the face of circumstances and twists of fate, but invariably bright and strong personalities.