There are a constant stream of Hungarian "masseuses" that work from a flat in Nth finchley. The rota changes on a weekly basis. I have seen a couple from this stable, both reviewed. 1 was a genuine masseuse,the other was not. In both cases, more than a massage is on offer for an extra fee. In language and conversation skills, one had non existent English, the other more than competent.
Will gladly TOFTT on this one once the number appears.