A reporter and a blind, retired journalist try to solve a series of murders. The crimes are connected to experiments by a pharmaceutical company in secret research. The two end up becoming targets of the killer.

Cast:James Franciscus, Karl Malden, Catherine Spaak, Pier Paolo Capponi, Horst Frank, Rada Rassimov,

Genre:Mystery, Thriller, Horror,

country:Germany, France, Italy,

Production:Labrador Films, Seda Spettacoli, Terra-Filmkunst, Titanus,