A wealthy man suffers from impotence whenever he tries to make love to his wife. Since Viagara hadn't been invented yet, his swinging liberal doctor instead recommends a strong dose of infidelity. Before long he is rolling in the hay with a young lovely and needless to say his impotence problem is cured (it's amazing that he doesn't have a heart attack though). His wife is a little bitter, however, and decides to embark on her own affair. And if you're wondering with whom, well, just look at the title.

A criminal organization has obtained two nuclear bombs and are asking for a 100 million pound ransom in the form of diamonds in seven days or they will use the weapons. The secret service sends James Bond to the Bahamas to once again save the world.

The most daring drivers in the world have gathered to compete for the 1966 Formula One championship. After a spectacular wreck in the first of a series of races, American wheelman Pete Aron is dropped by his sponsor. Refusing to quit, he joins a Japanese racing team. While juggling his career with a torrid love affair involving an ex-teammate's wife, Pete must also contend with Jean-Pierre Sarti, a French contestant who has previously won two world titles.

The four old friends meet on the grave of the fifth of them, Perozzi, who died at the end of the first episode. Time has passed but they are still up for adventures and cruel jokes, and while they recall the one they created together with the late friend, new ones are on their way, starting right there at the cemetery.

This time the "amici" (friends) are just four: Necchi, Meandri, Mascetti and Sassaroli. Nevertheless they are older they still love to spend their time mainly organizing irresistible jokes to everyone in every kind of situation. Mascetti is hospitalized in a geriatric clinic. Of course the place become immediately the main stage for all their jokes. After some jokes they decided to place an ultimate incredible and farcical joke to the clinic guests.

The young Vittorio Pieroni throws himself from a railway overpass when a train is passing by; escaped suicide and rescued by an ambulance, remembers the circumstances that led him to commit that gesture

Cristina is a rich, spoiled princess visiting Rome with her royal parents. The mission of their visit is to marry her off to a super-wealthy corporate type and thereby start to turn around the losses their small kingdom is experiencing in its casino business. These less-than-noble intentions get derailed when Barnaba, a zany bus driver enters their lives and falls madly in love with the gorgeous Cristina. He is nuts enough to succeed in this romantic chase after royalty, as love seems to fuel his determination to rid Cristina of her elitism and to make her see his own irrepressible attractions.

Four middle-aged friends in Florence organize together idle pranks (called zingarate, "gypsy shenanigans") in a continuous attempt to prolong childhood during their adult life.

Bruno Fioretti, known as "Mandrake", is an inveterate gambler who never misses a day at the horse racing track in Rome. He is doubly unlucky: he bets too much on one horse, and his wife is sleeping with his best friend because Mandrake is always at the track. Penniless and cuckolded, Mandrake decides to make one last bet.