Impressive and disappointing.
Part I is very exciting--Paul de Man in the voice and body of a Beckett cripple. The malevolence and disdain may feel a little borrowed, but no one will deny the facility with which it is carried off. Fun language, fun thought. The story of a man who took the name of a beautiful Aryan friend to escape Nazi Europe, even though the dead, beautiful, wealthy friend wrote a few anti-Semitic newspaper articles. Then the changeling goes on to reach the heights of academia as a critical theorist in America. At 80+, he is threatened with exposure, of a Nazi past that is not his, of a name that doesn't belong to him, by a deranged young woman who may only want to get near to him.
The question is posed, What is our true nature? Are we closest to our true selves when we self-create, which is to say lie? Are we closest when we steal the identity of the man we wish to be and make of the theft and our own will to transform something greater than what we were or what the desired man might have been? And the account we are reading--its integrity is unstable. Whe de Man character falls in with a young woman who threatens to expose his impolitic past, they become lovers, and at one point he tells her she can write his biography. She can even write it in the first-person, he says. A lovely trick, adding onto the identity theft in the narrative another that we might have no way of knowing for sure.
Then the final third of the novel, which is not so much disastrous as it is puzzling. Because it begins packing up its uncertainties and disturbances at the moment when they should be proliferating out of control. Not to mention that Banville has the narrator fall in love, which may be a nod to Beckett's "First Love," but which is all the same out of place, a betrayal of the character, and perhaps a misreading of Beckett. Rather than uncertainties and questions of identity, we are left with received certitudes, and these are of the usual WWII-Holocaust kind, the persistence of blood, the penalties of turning one's back on the tribe, etc. Killing off the girl while pregnant makes a certain "literary" parallelism sense, but Banville ought to be strong enough to resist easy symmetries for the more roilsome energies a story like this can unleash.