In this dream-sequence film, renowned Italian director Federico Fellini expounds at length on the nature, complexities, attitudes, and hang-ups of women and how this all relates to men hunting sexual conquests. Snaporaz (Marcello Mastroianni) is traveling in a compartment on a train when he lapses into sleep and dreams the ensuing story.
He follows a woman off the train and through a field and then loses her. Soon, as a representative of the male sex in general he finds himself in a hotel, among myriad women attending a feminist conference. Surreal episodes take him through a villa with his alter-ego Dr. Katzone (Ettore Manni, who died during filming) and references to his sexual exploits.
Reunited with his former wife for a moment, he starts another sequence which reviews his past.