This apartment immediately appealed to Ekaterina at first glance. Large rooms, high ceilings with plasterwork, a view from the window into a quiet courtyard… Real old times—merchant Shchetnikov’s house was built one hundred and fifty years ago. After the war, huge communal apartments were located here, but long ago they were settled, and now this is elite housing. Convincing her husband right away to formalize the deal, Ekaterina threw herself into repairs with enthusiasm. But soon something incredible happened: during the work, three workers died at once! No accident or misfortune—just a heart attack, and all three simultaneously. Ekaterina couldn’t believe such a coincidence! With the help of an old neighbor woman, she plunged into the long-ago history of this strange apartment. And soon she realized: the workers didn’t die by accident at all—she herself is waiting for many more unpleasant discoveries…