All of Kali and Ponna's attempts to produce a child have failed, including their prayers, penance, potions, and pilgrimages. They are continually harassed by the comments and insinuations of those around them while being in a loving and sexually satisfying relationship. All of their concerns and hopes ultimately focus on the chariot festival held in the temple of the half-female god Ardhanareeswara, as well as the festivities that surround it. Everything depends on the one night when the laws are lifted and homosexual unions of any gender are accepted. The couple's anguish and humiliation may come to an end this evening. But it will also be the ultimate test for their marriage. One Part Woman exposes a relationship that is caught between the rules of social convention in an acutely observed manner.