Between 1985 and 2004 a staggering 8,894 unsolved homicides were committed in New York City. Here is the first ever inside look at the elite NYPD squad that cracks these “unsolvable” cases. In this fascinating, in-depth narrative, Stacy Horn uses her unprecedented access to the NYPD Cold Case Squad to immerse herself into four unsolved murder cases—cases going back as far as 1951—investigated by three indefatigable Cold Case detectives. Each detective uses his own contacts, informants, and resources and sifts through decades-old evidence, searching for new leads, looking for what others missed, and uncovering any possible connections. These Cold Case detectives are on a constant hunt for the needle in the haystack, and Stacy Horn puts you there every step of the way. From the grisly circumstances and desperate reconstructions of the crimes, through the endless legwork, the scientific advances that don’t always yield hoped-for answers, and the harrowing politics and tangled history of the storied NYPD, Horn depicts the drama of each case, and lays out the puzzle as seen through the eyes of the detectives. At once contemplative and energetic, The Restless Sleep is a completely addictive, fly-on-the-wall story of a subculture of crime solving, and of the people who must beat the odds to offer a final resolution for the unavenged.