During this time, Fitzgerald rented the "La Paix" estate in the suburb of Towson, Maryland to work on his latest novel, the story of the rise and fall of Dick Diver, a promising young psychiatrist who becomes smitten with and marries Nicole Warren, one of his patients. The book went through many versions, the first of which was to be a story of matricide. Some critics have seen the book as a thinly veiled autobiographical novel recounting Fitzgerald's problems with his wife, the corrosive effects of wealth and a decadent lifestyle, his own egoism and self-confidence, and his continuing alcoholism. Fitzgerald was extremely protective of his "material" (i.e., their life together).