Monika Vovsa in Hell Mountain (1998)
This is a Czechsploitation film, aka Chained Heat 3, made in English with an international cast. There is a ton of nudity from Kate Rodger, Nicole Nieth and a bunch of Czechs.
According to IMDb, this is the only appearance where Monika was credited, although she also made a couple of uncredited appearances in the 1990s. She seems to have left the industry two decades ago, and there is little info available about her online.