Mygale is a crime sci-fi thriller novel by Thierry Jonquet, first published in France by Editions Gallimard in 1984, and then in the United States in 2003 by City Lights.

Alex Barny, a wanted fugitive after robbing a bank, decides to change the look of his face in order to avoid capture.

After raping Lafargue's daughter (resulting in her mental and emotional deterioration), Vincent is captured and imprisoned by the plastic surgeon.

As both an act of revenge and an attempt to replace the daughter that was destroyed, Lafargue performs a sex change operation on the imprisoned Vincent, and forces him to live as his wife.

The cover of the US release has a blurb from a review from The Washington Post, calling the book, "An unholy collaboration between Sade and Sartre, with occasional comic interventions by that honorary Frenchman Jerry Lewis."