Interesting themes

The Housekeeper by Sadie Ryan is a story told by alternating Lindy and Mia.
Both woman have their sorrows. Lindy wants to help Mia and has a strange proposition. What sounds like a good idea evolves into a nightmare.
You constantly switch between the two main characters in short chapters.
The start was a bit slow, but then the pace accelerates and the book ends in an unexpected end. This book is not for people who expect action, it's a psychological story with some actual themes like narcissism and stalking.
Thank you NetGalley and publisher Joffe Ebooks for providing the book.