Although the drug is present in this film, the Crack this movie is about is, metaphorically, the crack in society which all the protagonists inhabit in a rundown neighborhood in Rome.

Valentine Demy stars as Eva, the gorgeous queen of the town brothel, which she left after inheriting a villa from a wealthy client. Now alone and bored, she picks up three handsome young men (including David D'Ingeo) and, one after the other installs them in her villa where she lovingly cares for each of them. The boys are more than happy to share exuberant Eva's brazen sensuality, without any jealousy, whilst Eva entertains them with arousing tales from her brothel days. However, the idyll ends when Eva falls for an older businessman, upsetting her young lovers who then plot to kill her. But they soon realise instead how Eva has changed their lives for the better, and they happily set off for more adventures leaving Eva the chance to begin a new life.

Federico Fellini welcomes us into his world of film making with a mockumentary about his life in film, as a Japanese film crew follows him around.