Koi Chand Rakh

Umair and Nishal are siblings and are Rabail's cousins. Grown up together but the three have completely different natures. Umair is in love with Rabail who is four years older than him. Zain's father fixes his marraige with Rabail but Zain and Nishal are in love. Umair's mother doesn't want him to marry Rabail. Rabail and Zain get married, but he doesn't accept this relationship and stays in touch with Nishal. Where will these complicated relationships lead to?