Quest orgines and self-narrative

A book that is not without interest, but I found less interesting than "Limonov" for example.
The story consists of several intersecting stories: a story about a Hungarian prisoner of World War II stayed 50 years in a Russian psychiatric hospital and returns to his homeland, the will of Emmanuel Carrère to write about his grandfather d Georgian origin and disappeared after the Liberation, the relationship with her mother in law and the need to write about what grandfather, a story in a very sad Russian city as a quest for origins, a growing relationship tormented and destructive with his partner.
Emmanuel Carrère achieves a coherence of these different narrative time: they form a whole, this is an investigation into its origins, and also on the impact that family history can have on its present psychology.
We can of course discuss the choice of the author to publish his family history, his relationship with his mother, his private life, including his sexual life. I consider for my part that this is a personal choice: the novelist to assume the reader will find meanwhile a "material" to study this content once made public. In any event, Emmanuel Carrère does not hesitate to describe without compromises the darkest aspects of his personality ...
Towards the end of the book is dark in the horror Somewhat unexpectedly, among the dramatic events experienced by the characters of Russian reporting and devastating turn taken by Emmanuel Carrère's relationship with his partner.
But there is also in this book creativity that can make them smile or laugh new erotic by the author published in Le Monde, in which he imagines create an atmosphere of sexual complicity in a TGV on a summer afternoon ...