...This Moscow apartment, outwardly unremarkable, turned out to be a real “shop of miracles.” Here you could find EVERYTHING - medieval engravings that disappeared without a trace, unique paintings that were considered lost, and BOOKS. Books, very expensive, which almost cost the old antique dealer his life... The police refuse to believe the suspicions of the cantankerous old man. And then Deputy Prosecutor General Merkulov begins his own investigation - an investigation that begins with completely innocent questions - and continues with questions that become increasingly strange and dangerous...