See how medical science SOLVES Europe's most baffling crime
A playwright descended from the Borgia family becomes a murder suspect.
Donald WoodsJuan Cesare
Margaret LindsayFlorence Ballau
C. Aubrey SmithGerard Lytton
Henry O'NeillVictor Ballau
Robert BarratInspector Von Brinkner
Florence FairTeresa
Frank ReicherVon Stein
Charles JudelsSalvatore
Rafaela OttianoLili Salvatore
Paul PorcasiAntonio
Eily MalyonFredericka
Egon BrecherKarl
Herman BingBaker
Henry KolkerAuctioneer
Barlowe BorlandEric (uncredited)
