It is always a pleasure to see the universe of Ruth Rendell: searched and the extensive psychological studies characters, who often bring an atmosphere "whatever it was normal to y" to an oppressive climate possible. We find these ingredients in the album of 2009 with 2 sisters, their secrets and not shared suspicion, with many interesting secondary characters, whose common might be looking for a soul mate.
That may be a little bit long, but it is read with pleasure, I was really eager to get to the end. the outcome may be disappointing, no major rebound, but hey, do not spoil our fun ...