<p>Kay Adler is a hardworking Chicago detective who seeks justice for the victims of murder. She has one close friend, no lovers, and a difficult family. Her life is her work. If she drinks enough on her off hours, it suits her just fine.</p><p>When people she knows start dying, her team works to track down the killer. He&rsquo;s a master of disguise and impossible to find, and she must look at uncomfortable parts of her past to find a suspect. She finds two. She&rsquo;s removed from the case because of her personal involvement and is replaced by Detective Jamie Sidwell, a woman with whom she has a troubled relationship. Their uneasy alliance takes them places they never would have guessed, but their bond is tested when the killer turns his sights on Kay.&nbsp;</p>