Professor Andrew Martin of Cambridge University finds himself naked and wandering the city but unable to explain why. What transpires is a story of alien intervention in his life and an attempt by that alien race to prevent the humans from gaining access to a technology which would change everything.
The book centres round the Riemann hypothesis – go look it up its really interesting. No really!
The dog provides a great unvoiced character and his teenage son is accurately observed. So much good here.