Franco "Cookie" Arnò (Karl Malden), a middle-aged blindness man, is out at night walking with his niece Lori (Cinzia De Carolis) when he overhears a man in a parked car mention blackmail. After Franco and Lori return home, the man in the car gets out and breaks into a large medical complex, the Terzi Institute. The following day, the police and reporter Carlo Giordani (James Franciscus) investigate the break-in, Carlo introducing himself to Franco during a run-in.