A pair of venerable elderly women, dedicated to writing romance novels that publishers no longer want to publish (as times are leaning toward racier and more unorthodox literature), are forced to rethink the subject matter of their stories and decide to base them on their own libertine experiences from their youth, when they worked "in the service" of the progressive and charming Count Johan, now deceased, and cousin of the current Count Hubert, a conservative politician and architect of the so-called "Moral Rearmament Fund." He, by chance, learns of the extensive "immoral" documentation that the two girls were kind enough to compile in their time, and which will now serve as the basis for stories "based on true events." To preserve their prestige as authors of "acceptable" literature, the authors decide to use the name of their nephew Tony Bram as the author of the works, since he lives abroad and it is easy to keep him out of the loop. But when the books become hugely successful, the entire press goes after Tony, who is, evidently, oblivious to the events.
Denmark abolished all film censorship before its Swedish neighbors, opening the floodgates for skin and sin to spread across local cinema screens. While popular comedy actor Ole Søltoft was making his way through a variety of roles in erotic films, producer Anders Sandberg snatched him up to star in what would be called the "Zodiac Series" (only six were filmed, and this Leo one is the fourth), where each film was built around a different zodiac sign, each more erotic and/or pornographic than the last, taking into account that, in keeping with Scandinavian customs and culture, what was considered a "family film" there was, in the US, for example, pornography or "for adults only." "I Løvens Tegn (In the Sign of the Lion)" is perhaps the most explicit but also the most beautiful and entertaining of the zodiacal sextet.