Giovanni Percolla lives in Catania surrounded by the attentive cares of his three sisters. He permanently acts like a Don Giovanni to hide his real poor "knowledge" of women. With his friend he moves also to Rome but women still continues to remain part of his fantasies. But Giovanni succeeded to build anyway a fame of "tombeur de femmes". One day he meets the real love of Maria Antonietta and decides to marry. Will things change?
In this sword and sandal fantasy, Poseidon must battle a gladiator quartet in ancient Rome. If he wins, the son of Hercules will have his life and anything else he wants. Sure enough, he wins and asks that the life of a Christian girl be spared. But the girl refuses her liberty until all of her fellow believers are also released.
Giulio has a faithful wife and a true friend, but he is convinced that only with money can one be happy. So he devotes himself to dangerous real estate speculation in Sardinia, even though he does not have the capital to deal with it. To find the necessary money, he is willing to give up even his dignity. And slowly, he alienates his most beloved ones from himself....
In Italy, small-town newlyweds Wanda and Ivan Cavalli embark on their honeymoon in the big city of Rome. Ivan dutifully wants to keep appointments with family and church, but Wanda is only interested in meeting her favorite photo-strip star known as "The White Sheik". While Wanda impetuously sneaks away to locate the object of her affections, disconsolate Ivan tries his hardest to keep up appearances with the couple's relatives.
Giovanni used to be a humble, mild-mannered government clerk whose life was turned upside down when he met Giulio, a notorious forger who at once set about manipulating the over-confident man. Giovanni did what he should never have done: he associated himself with the crook. Giulio soon laid hands on Giovanni's money, ruined his career and manhandled him into marrying his own mistress, the beautiful Ginevra. It was of course an unhappy marriage but Giovanni found a little solace when his son Ciro was born. Seven years later though, Wanzer resurfaced...