Scandal rocks the medical community when someone murders the chief administrator, plunging a long thin cardiac needle into his heart with deadly precision. Top ER physician Earl Garnet is one of the few doctors who knows how to insert a cardiac needle. Now a suspect, Garnet races to uncover the truth, even as he becomes embroiled in a conspiracy far bigger and more sinister than he could ever imagine--a secret that could blow apart the very medical establishment Garnet has sworn to serve.