At a country club, people are playing tennis, although you never see this happen. What you see is that the movie opens when it starts raining and everybody stampedes into a tent so get out of the rain. Apparently, Germans can't stand to go two minutes without doing something so the guys start pulling off the girls' shirts and sucking their tits, and the girls start pulling down the guys' pants and sucking cocks. A few minutes of that and everybody decides to run for the clubhouse (the rain is apparently not going to stop) and has an orgy. Lots of partner swapping. One girl does anal and DP. Most of it is just random naked bodies doing all sorts of things at the same time, with some closeups of key moments. Cumshots are all facial or mouth shots.
I put this video on my list because many Puaka flicks have creampies and I mistakenly thought they all did. This one does not. If you want creampies, skip it, and re-check any Puaka disks you listed. If creampies aren't required to make you happy, then take it on its own merits.