A newsman works with a blind puzzle-solver to uncover a deadly conspiracy linked to a genetic research facility.
James Franciscus
as Carlo Giordani
Karl Malden
as Franco ArnĂ²
Catherine Spaak
as Anna Terzi
Pier Paolo Capponi
as Police Supt. Spini
Horst Frank
as Dr. Braun
Rada Rassimov
as Bianca Merusi
Aldo Reggiani
as Dr. Casoni
Carlo Alighiero
as Dr. Calabresi
Vittorio Congia
as Righetto (cameraman)
Ugo Fangareggi
as Gigi the Loser
Tom Felleghy
as Dr. Esson
Emilio Marchesini
as Dr. Mombelli