Hard boiled wonderland and the end of the world - Murakami Haruki

Murakami, buy-one-get-one-free option. Two stories told through alternating chapters.
The first one is based, as usual in Murakami's novels, in a slightly dystopian version of modern day Japan, where two powerful organizations are fighting an all-out cyber-war, and a band of invisible mutants roam around a web of tunnels connected to Tokyo's subway system. The second one takes place in a totally fictional world, a walled city inhabited by unicorns and people deprived of both heart and shadow.
At the end of the book Murakami unveils the connection between the two plots, and the fictional world turns out to be a product of the mind of the first story’s protagonist.
A bit confusing sometimes, still an intriguing and creative novel though.