Deadly Inheritance

There are a number of inheritors to a fortune who are getting killed by a mysterious somebody whom we do not see. Each death is novel, but not terribly graphic. Who did it?

• Aldo BrunoWriter
• Vittorio SindoniDirector
• Romano MiglioriniWriter
• Vittorio SindoniWriter

• Tom DrakeInspector Greville
• Femi BenussiSimone Marot
• Virgilio GazzoloCommissioner Etienne
• Ivo GarraniLeon
• Ernesto ColliJanot
• Valeria CiangottiniColette Marot
• Isarco RavaioliJules Didier
• Giovanna LenziRosalie
• Andrea FantasiaNotaio
• Alessandra MaraviaNatalie
• Arnaldo De AngelisOscar Marot
• Aurelio MarconiUsuraio