It's a good read, but not as good as the other 2 books by Barbara Nadel I have read (Belshazzar's Daughter, The Ottoman Cage (= A Chemical Prison)).
The secret wife of famous Turkish singer Erol Urfa is murdered. Only the motive is unclear. The singer's lover (another famous Turkish star) knew about the wife and was content being the lover. Erol Urfa himself comes from a traditional background, and being properly married and having children is of utmost importance to him.
Of course, there is the neighbor's son whose fingerprints are all over the murder scene - only he has Down's Syndrome and would not be capable of a carefully planned murder.