Christopher Fowler 
Disturbia 

After this city hits midnight, everyone becomes equal. That’s when anything can happen.It’s 2 am and Vincent Reynolds is running for his life through the stormswept London streets. He’s discovered a secret and wants to tell the world — if he can stay alive until dawn.His adversary — an English gentleman obsessed with puzzles, playing his deadliest game. His allies — a motley crew of insomniacs, misfits and street people. His only hope — to discover the solutions to ten lethal challenges that will lead him, from dusk till daybreak, through the nightlife of a secret city hidden even to its inhabitants.