My least favourite of the Frieda klein series. Most of it is just a long ramble around the hidden sides of London, grim flats with polish workers, and implausibly getting childcare jobs with no references or background checks with Frieda situation getting worse and worse, of course. 
It’s all rather contrived and can actually tell a couple are sitting writing and saying ‘what plot twist shall we write Now, what more misery can we heap on Frieda ? Oh I know, Let’s bung in a Few more kind hearted misjudged poles to save the day. ‘