The Least of It tells the seemingly placid tale of a man reunited with a longtime friend after years of estrangement. At the heart of their disaffection is his friend's ex-wife, Simin, a brilliant, headstrong woman with whom the narrator has always been in love, a love unrequited, except in the confidences she has shared with him over the years, secrets that have compromised his relationship with his friend, rendering him all but incapable of speech.

Spanning a single day in Mexico City, The Least of It is a story of jealousy and deception, of innocence and complicity, of the role of one man in the betrayal and destruction of another.