The Guest by Cathryn Grant (Inkubator Books)

Ellie is successful gallerist and mother of two. She is married to Seth who one day brings home an attractive stranger who eventually starts to live with the family. Ellie doesn't know much about him and her husband acts very strange. Then the girl at sons school is murdered and police thinks that he is somehow involved in it. As a mother she is devastated. Ellie starts to dig for the truth and finds all kind of secrets in her own household. Who are these people really? 

Perfect psychological thriller that you'll read in one evening.

4/5