movie title?

Foreign Language film. Subtitled.
Fairly sure it was made 90s or early 2000s.
Plot. Cannot remember too much, a group of young adults are in a shopping mall at the beginning or a little bit into the film. cannot remember if the whole film takes place in the shopping mall but I think it was after hours they are in there as well at some point, i think they may break in, forget what the purpose was. Can remember a scene at the beginning where some pervy security guard is spying on a woman changing in the dressing rooms through a two way mirror.