In the bustling streets of Chennai, a brother and sister, bound by blood and shared secrets, find themselves drawn to each other in the most taboo of ways. Their home, a cramped apartment filled with echoes of their parents' absence, becomes the stage for their forbidden desires. The siblings, both in their late teens, have always been close, but lately, their bond has taken a darker, more carnal turn. They begin to explore each other's bodies, tentatively at first, then with increasing urgency, as if driven by a force beyond their control.