Narsimha Avatar is a thrilling action story set in Kathmandu. It follows Dijendra Pratap Singh, a powerful businessman and gangster, whose empire is shaken by a mysterious masked vigilante named Narsimha. To restore control, Avinash Bikram Shah, a suspended cop with a personal vendetta against Dijendra, is brought back into action. At the same time, Subash, a young man who has just returned from London, grows close to Kusum, not knowing they share a painful past. As the truth unfolds, Subash is revealed to be Narsimha. The story builds to an intense showdown where Subash fights to avenge his family and bring justice to the city.