What I remember is;
This aired on SBS in the early 2000s (SBS is an Australian free to air channel that airs Foreign Films. ), and I remember it being fairly new looking at the time of watching.
I believe this was made in the late 90s / perhaps 2000 to 2001. No later than that.
Lead actress was punk / gothic, with piercings or tattoos. I believe the plot was about her friend or relative going missing after chatting with someone online.
The lead actress is forced to strip in front of a webcam by the villain (no, this is not why I want to track this film down 😛 ).
At some point, the lead is locked in a bathroom but escapes, left gasping for air.
I know this will probably be impossible to find, but I just thought I’d try.