Darien, a left-wing police informant, is forced to lure his old friend Sadiel to Paris, allegedly to film a television special about the Third World. Sadiel, the exiled leader of a North African state, is being hunted by the ruthless Colonel Kassar, who will stop at nothing to capture his political rival. Once Sadiel arrives in Paris, Darien realizes he has been manipulated. He tries to turn back the clock, not realizing what or who he’s truly dealing with.

A youngish sales employee of a computer firm is blackmailed into helping a group of mysterious Bulgarian industrialists who have come to his office. A government contract is being sought for a businessman who is in danger of bankruptcy.

A network of spies affects the lives of people in and out of the organization in this espionage drama. Dominique is the neglected wife of a spy who tracks him down at a Paris antique shop. Finding him with a female spy, the enraged wife shoots both of them. Dominique hides out on a boat while the police investigate the murders, and international spies scramble to recover some missing microfilm. Helen is the spy boss who orders a hit man to go after Dominique.

Sial IV is a Swiss television miniseries by Greek filmmaker and writer Adonis Kyrou, adapted from the speculative fiction novel Deadly Image (AKA The Uncertain Midnight) by British author Edmund Cooper. It tells the story of Denis Lange (Henri Gilabert), a fallout shelter engineer who is accidentally trapped in suspended animation as war breaks out in 1970, only to awaken in the early 2100s in Sial IV, an underground city in which humankind lives a life of leisure, having discharged all responsibility to androids. Assigned the android Diana as his personal assistant, Denis ventures through this unsettling idyll, eventually finding a small but tenacious group of resistors who seek to uncover the truth about the compound and its ruler, the mysterious Machiavelli.