Millie is desperate and needs a job.  She interviews with Nina and is hired as a housemaid.  Nina has a 9 year old daughter, CeCe, and husband Andrew.  Lots of weird stuff happens in the beginning and it appears that Nina has some mental illness.  Twists and turns at the end but was just ok for me.  I already have the sequel from the library but will see if it is more of the same just repackaged in a different way.