Seven Murders for Scotland Yard (1971) Jack el destripador de Londres, 7 cadaveri per Scotland Yard, Epta fonoi gia tin Scotland Yard, Jack the Mangler of London, Jack the Ripper of London, Jack the Ripper
Serial Rapist (1978) Jûsan-nin renzoku bôkôma, 13-nin renzoku bôkôma, Jusannin rensho bokyaku ma, Le démon de la violence
The Killer Must Kill Again (1975) L’assassino è costretto ad uccidere ancora, The Dark Is Death’s Friend, The Killer Must Strike Again
