There was a very interesting BBC R4 documentary yesterday evening about women who left a 'closed' orthodox Jewish community in the UK. This community may actually end up being the largest Jewish community because of their strict rules, it seems.
It included arranged marriage, women losing their children if they leave the community and day-to-day stuff. For example, covering their hair (no, that didn't start with Muslims). Ordinarily, the women wear wigs. The most observant wear wigs AND hats.
You may recall bits in the OT about menstruating women being 'unclean'. In this community they have ritual bath-houses where women must attend to ritually bathe after their period - after they have used white cloths inserted vaginally to confirm the end of the flow. In any case of doubt the Rabbi is called in.
This community regard themselves as the 'true' Jews who are following their laws. Listening to this was an eye-opener for me.