Translate the text into English. As a result of a car accident, the charismatic head of the surgical department at one of Toronto's hospitals, Charlie Harris, falls into a coma. His fiancee and colleague, Alex Reid, alongside the renowned surgeon Joel Goran, fight for his life. And meanwhile, the spirit of Dr. Harris roams the hospital corridors, trying to understand who he is - a ghost or the product of his own imagination. Reid and her colleagues fight for Charlie's life and for the lives of other patients, daily facing the need to make difficult and bold decisions, so that they always have hope of being saved.