An American billionaire, who has married a luscious young wife 50 years his junior, often breaks into sobbing fits at the sight of her : all is not well between them in the bedroom stakes and he decides to have an "organ" transplant.
After a series of false starts, they arrive to the three final prospective candidates, all of which are, coincidentally, Italian. One is an idiotic but clearly well-endowed brute who, having been "gang-raped" by a group of Swedish female sunbathers, wants nothing else except to go back for more, another is an unassuming family man who happens to have 14 kids and is constantly being harassed by his avaricious relatives into accepting the "job" and, thirdly, a nouveau pauvre Sicilian aristocrat who spends the time dodging his creditors by day and bedding their wives by night! They are put to several strenuous tests to prove their maximum virility during the course of which they naturally start having second thoughts about going through with the operation...