This Italian amateur import fortunately includes enough subtitles to convey the gist of the performers' conversations.

Stella Rubino, apparently the owner of a newsstand in Bologna, is invited to Imola to Alexy Brey’s home for what can best be described as a swing party. Once they get into it, which is immediately, a surprising thing happens. Initially, this could easily be sluffed off as just another amateur-style release, but upon closer scrutiny it is clear that these gals are hardcore little fuckers who may not all be camera-aware, but certainly know how to fuck and suck, and a few of them take it up the ass and enjoy double penetration in the smaller groupings.

The action then moves to a strip club where apparently anything goes, and then to Milan to a large home where mostly masked people continue the free-for-all wild-assed sex.  

There is a lot more here than one may assume at first glance—give it a shot and watch it all.