Take the threat of nuclear disaster, the ecological deterioration of the earth, the terror of an all-powerful Antichrist; mix it with an international cast topped by Kirk Douglas, Agostina Belli and a number of convincing British actors like Simon Ward, Anthony Quayle, Alexander Knox and Virginia McKenna and shake well.
The conflict is between Robert Caine (Douglas), an idealist in the realm of nuclear power plants and his demon son Angelo (Ward) with tenebrous plans to push dad’s project for fission power to wipe out human life. The supernatural pushes superficial arguments about nuclear power to the side and gives the spectator a sense of human helplessness to contend with such an evil and destructive force as the Antichrist.
As striking a beauty as Belli is catapulted into the conflict with only symbolic story roots in a Biblical-like finale and with a slow, pronounced accent for her lines. The dramatic picture-long father-son duel between Douglas with a mid-American accent and Ward with a British lilt keeps the plot in place right up to the inconclusive finale.