When her fragile teenaged sister is held for ransom by a sociopathic sorcerer, Celia Ladrón, a witch and professional thief, is forced to steal a topaz dagger from Evi Leshnikov, a reclusive shapeshifter and old acquaintance.

Before she can escape with the dagger, Celia is caught by Evi. Incensed, he offers harsh terms—submit to his darkest desires or leave empty-handed. Desperate to save her sister, Celia agrees, unaware the erotic test of wills may break her—body and soul.

In the end, however, it just might be Evi who is humbled.