Grandma Serafima is well known among adults and children alike—everyone eagerly made up and retold stories about her. Rumor has it that Serafima keeps a huge chest in her bedroom. Of course, no one doubted what the chest contained—it had to be a real treasure. Sashka, who lives not far from Grandma Serafima, paid close attention to these legends. One fine day, Sashka decides to find out for himself what is inside the chest. When he sneaks in and opens it, however, he is disappointed—inside there is only a large number of various rings, arranged in boxes and cases. Each ring bears a year, starting from 1941. The boy does not yet realize that he has come to this house for a reason—the fate of his relatives is intertwined with Serafima’s fate.