the story of Edgar Freemantle and his recovery from the terrible nightmare-inducing accident that stole his arm and ended his marriage,
On his psychiatrist's advice, Freemantle decides to start anew on a remote island in the Florida Keys. To his astonishment, he becomes consumed with making art—first pencil sketches, then paintings—that soon earns him a devoted following.
Freemantle's artwork has the power both to destroy life and to cure ailments, but soon the Lovecraftian menace that haunts Duma Key begins to assert itself and torment those dear to him.