Frankie Dio (Lee VanCleef) is a high-ranking mobster who turns himself in to the police or illegal gambling (for reasons that seem unclear to me). Tony (Tony Lo Bianco) is a low-level thug who frequents a pool hall and spends his free time envying Frankie. By being in the right place at the right time, Tony gets arrested with Frankie and is sent to jail... where they form a bond that may not quite be friendship, but it will do for now.
This film came to me under the title of "Frank and Tony", which is disappointing because I see an alternate name is "Mean Frank and Crazy Tony", which would have helped sell the film more effectively. I presume that's an homage to "Dirty Mary, Crazy Larry" but what do I know? I watched it shortly after another Italian crime film, "Violent Professionals", and I must say the two complement each other very well.
Italians have always lagged behind Americans in their budgets and production values, which is a real shame with this film. It is considered a "grindhouse" film, which unfairly demotes it to a b-movie (or worse). With a cleaner sound and picture, this could have been a Hollywood hit, I suspect. I found the story very interesting, the characters (and actors) better than average and unlike "Violent Professionals" the plot is fairly clear -- not too many secondary characters.
If you like Mafia movies or crime films you should give this one a try. A film about the mob that's actually from Italy (how much more authentic do you want?) is as much as you can ask. Sure, it's not "The Godfather", but it's not supposed to be. This isn't a drama, it's a light comedy, heavy action buddy film... like "Die Hard With a Vengeance" from the point of view of the bad guys. Well, okay, not really.
If nothing else, this film made me want to check out other films from the director and the principle cast. Films besides "Escape From New York" (where VanCleef plays "Hauk") and the usual cult movies. What's more fun than discovering a lost classic?

As said before, the visual effects are stunning. They're breathtaking. I personally use Blender and graphics like that are not easy AT ALL. But that's all this movie is. Not only is the plot confusing, but the overall conflict is not clear. For example, in the first scene, Proog and Emo are trying to run away from who knows what. The conflict seems to be between man and nature here. Later, when they enter the room of the bottomless pit, Proog explains that "one step out of place and (you're dead)". Here, there's a more precise conflict between the careless man and nature. As the movie progresses, it's clear that a conflict exists between man and nature. But suddenly, a conflict exists between man and man when Proog, out of nowhere, murders Emo. Proog immediately changes from being a caring guardian looking after a lost child to being a "sick man". He betrays us. Not only is this depressing, but we don't care because the conflict between the character's thoughts and actions is not developed. It's not a story about someone, through struggle, emerging stronger. It's depressing and has not point because there's no great truth about the human soul or about the world brought to light like a great drama does. In my opinion, the movie is severely underdeveloped in all aspects. However, the graphics are stunning, but a movie is so much more than mere eye candy. There's no truth, no struggle and a bad surprise ending. In conclusion, an underdeveloped movie without a point. ...but the graphics are good.