The ape-man, found somewhere in the jungles of Congo, transferred to Milan and named Bingo Bongo. The only one who believes in the human qualities of him is Laura, a woman anthropologist , so their affection for each other even grows to love.
In a world ravaged by violence, and other serious social problems, Joan - a character that alludes to Christ (which represents the return to Earth) arrives to Italy by train and preaching for the salvation of mankind, condemning the hypocrisy and hedonism.
