Alvin is an average man, except that women find him irresistible. The only woman that Alvin really wants is his platonic friend Tina, but he appears to feel no sexual desire for her. He follows her to a convent, where he gets a job as gardener.
A 'sexist sex comedy', made during the peak of the feminist debate in Australia, Alvin Purple reverses the feminist polemic of men oppressing women by having its protagonist pursued by a constant stream of predatory women. He is victimised even more when he refuses sex. Paul Byrnes (Australian Screen) notes that 'the film was [also] reacting against entrenched puritanical attitudes in Australian society. To some it was prurient farce; to others, it was exposing the repression that produced such prurience.'
Tom O'Regan notes in 'Cinema Oz: The Ocker Films' (1989) that Alvin's 'ordinariness seems irresistible to women. The comedy is based on incongruity. Sex is rendered as slapstick. Jokes are at the expense of bastions of hypocrisy - psychiatry, the press and the law. The would-be recessive hero is the object of male sexual fantasy - sex without responsibility - a fantasy with which women could also apparently identify.'
[Source: Paul Byrnes, Tom O'Regan, and Andrew Pike and Ross Cooper]