This is one of the very strange 70's collisions of Asian exploitation and Scandinavia exploitation. The most famous films like this might be the two Japanese films "Sex and Fury" and "Porn Star Travels Around Japan" both of which feature Swedish sex bomb Christine Lindberg in what were otherwise pretty standard Japanese "pink" or "pinky violence" films. This, however, looks like more of an even co-production between Hong Kong and Denmark, filmed largely in Danish locations and with a cast pretty evenly split between the two countries.
Two Chinese men go to Copenhagen for some reason. While one of them philanders around with various Danish and Asian women, the other falls in love with his Chinese tour guide, but takes time to have various drawn-out kung fu battles with a seemingly endless amount of thugs sent by his partner's overweight and very jealous girlfriend back home. Such as it is, that's the basic plot.
This movie portrays Denmark as a sexual shangri-la where three women will have hot sex with you if you merely pick up a pornographic magazine one of them drops. The philanderer also has several sexual sexual encounters with a beautiful Danish popsy name "Ingrid" (Lise Lotte-Norup) that all seem to go horribly wrong. At one point her husband comes home dressed in a deerstalker and a monocle for some reason (kinda like Sherlock Holmes crossed with Colonel Klink), but he ends up only welcoming the Asian man to his home and his wife! This free-spirited sexual easiness, however, seems belied by the fact that all the Danish women (and Asian women) in this movie seem to use body doubles for their sex and more graphic nude scenes. I suspect this movie was originally quite tame due to stringent pre-Category III censorship in Hong Kong at the time, but the French version I saw went back and added all these body double sex scenes. But who knows? There are some good martial art scenes (if you're into that sort of thing), but obviously this more of a goofy HK comedy than anything. Very weird flick