I was only partially impressed by this book, one of Ellroy's earlier novels. Sometimes the writing is awesome, some parts of this book show flashes of his future brilliance. Mostly the plot is simplistic and illogical. The protagonist, Homicide investigator Lloyd Hopkins, appears to solve cases by pulling the clues directly from his ass.
Even with these significant problems, Ellroy's ability as a writer of prose makes this a worthwhile read.