Na Jaane Kaun Aa Gaya follows Kaushal Agarwal, a man whose life revolves around discipline, routine, and family. In contrast, his wife Tina embraces creativity, independence, and a life that defies convention. Their seemingly perfect world is shattered by a sudden disappearance that leaves Kaushal struggling to make sense of the void. As he searches for answers, cherished memories begin to unravel, hidden truths surface, and familiar relationships take on new meaning. Forced to confront his own beliefs about love, identity, and masculinity, Kaushal embarks on an emotionally charged journey of self-discovery. Exploring the unspoken complexities of relationships, the film is a poignant meditation on grief, devotion, and the delicate balance between holding on and learning to let go.