Robert Ludlum (and later his estate) writes about an assassin character who has extreme memory loss. Hmmm....

After we get a little glimpse of Hal Ambler not being able to find himself in any search, I found myself thinking of Total Recall - where the only person who could erase everything he knew was himself. Alas, the plot was not that interesting.

I found the secondary character of Caston, the CIA number cruncher, to be a more interesting hook, and enjoyed their limited partnership towards the end of the novel.

Robert Ludlum could have edited and tightened this story to 3 or 4 stars easily, but the estate has only produced a fairly derivative work.