The girl Masha gets to the police department detained with the homeless. Her refined manners and an expensive ring contradict the life of a tramp. But the girl does not remember anything about her past and does not know how she ended up on the street. Soon, the stranger is identified, but the information shocks the police. According to official data, Masha died in a fire and was buried long time ago. The investigation will have to clear up this complicated criminal plan .