Carroll Baker plays a dual role as translator Julie Harrison and her twin sister Mary. The serpentine plot begins as Julie tells her lawyer Dave Barton (Stephen Boyd) that Mary's life is being threatened in London while Julie herself is being stalked by a mysterious stranger in Amsterdam.
Sordi gives a deep and touching comic performance as an Italian fur merchant who is going to Sweden for the first time to attend the annual fur auctions in Stockholm. The movie depicts the clash between his fantasies about sex in Sweden with the reality of what he finds.
An Italian high school student becomes infatuated with a woman he sees outside his class window. Her fiancée is in jail for being involved in a radical movement, and she spends much time in court providing moral support. At first she resists the student's advances, but eventually begins an affair with him. Their situation is condemned by her family and his father, who is the woman's psychologist.
Dough-crazed mercenaries Sammy and Klaus are on a mission to escort the seriously ill prime minister of a South American country that has just been taken over by the rebels to his buddies over the border. Chased by the rebels, and with the politician's health rapidly deteriorating, they stumble onto an infirmary staffed by a quartet of nurses and take them hostage, forcing them to cure the prime minister, and fast. After an initial rape, romantic feelings begin to emerge as Helga has it off with Klaus, Katrin with Sammy, and Sophie with Hellen…until a squadron of rebels drops in.
"Devil in the Brain" is a tense Italian-made thriller directed by Sergio Solima; starring Tino Buazzelli Keir Dullea Stefania Sandrelli and Maurice Ronet; a young boy saw the killer but a shock-induced trauma keeps him from remembering the details– however the killer doesn't feel safe.