A series of serial murders began in San Francisco - brutal, bloody and inexplicable. After the maniac - or maniacs - there remain very strange clues that the most experienced experts cannot classify. At the same time, police inspector Brian Clauser begins to see extremely realistic dreams, filled with fear and a thirst for hunting. He sees creepy, frightening creatures—monsters endowed with incredible power—and he feels like one of them. And the next morning it turns out that the crimes from his dreams coincide to the smallest detail with the crimes that happened in reality. Brian understands that he will have no peace until he deals with the bloody killers. And most importantly - with the way he is connected with them...