Kvalifitsirovannyy ekspert i restavrator s mirovym imenem Dmitriy Starygin byl avantyuristom po zhizni i, nesmotrya na tihuyu kabinetnuyu rabotu, perezhil stolko interesneyshih i opasnyh priklyucheniy, chto ih hvatilo by na desyatok skromnyh restavratorov. Vot i na etot raz, otkliknuvshis na prosbu znakomoy pianistki osmotret antikvarnyy klavesin, Dmitriy sluchayno obnaruzhil, chto v instrumente ...