A killer known as Henry the Eighth leaves a trail of decapitated corpses. For NYPD detective Adam Kamen, reeling from a personal tragedy and bitter divorce, cracking the "Henry" case offers a chance to get his life back on track--until a freak accident leaves him with a bizarre brain injury. When he recovers, Adam's perceptions of time are altered. He soon becomes convinced that his condition is tied to the "Henry" killings and that the key may lie in the ancient art of trepanation, the macabre ritual practice of drilling holes in the skull to achieve enlightenment.