Our world, a little forward in time, with a plague sweeping the planet that causes people to stop sleeping and then die. A cop is undercover trying to track the black market for the one drug that gives the sleepless some measure of peace, but uncovers a murder, a conspiracy and a contract killer. The action is gripping, although the shifting perspectives (told partly by the cop, partly by the contract killer) is confusing at times. As the sleepless aren't sleeping any more, Huston has envisioned that they spend their days and nights immersed in a video game. This game, and the underworld of the drug dealers, and the general descriptions of a world falling apart in the face of an epidemic are all fascinating, but what really got to me is the relationship of the cop and his wife, one of the slowing dying sleepless. Fantastic.