If only Duck Crenshaw had known. Countless lives could have been saved if he had made even one different decision. Instead, Duck's run-in with Mason Creedle and Tyrone Woolard-two budding serial killers-on one rainy fall morning in Richmond, Virginia starts a terrifying chain of events. As their crimes escalate from drugs and assault to murder, Mason and Ty wrestle with their constant yen: the urge to kill. The story of Emily, a smart college student, and Penny, a retired college professor, shows not only the depths to which Mason and Ty will sink, but also the power of Emily's and Penny's friendship and the strength of the human spirit. Mason and Tyrone might embody evil, but The Constant Yen shows how justice triumphs in the most humorous,unexpected ways-through the intuition of a dog and the tenacity of a West Virginia fire chief.