Jeff Lindsay is the pen name of American playwright and crime novelist Jeffry P. Freundlich (born July 14, 1952), best known for his novels about sociopathic vigilante Dexter Morgan. Many of his earlier published works include his wife Hilary Hemingway as a co-author. His wife is the niece of Ernest Hemingway and an author in her own right. Lindsay was born in Miami and graduated from Ransom Everglades School in 1970, and from Middlebury College, Vermont, in 1975.