Reliance Entertainment and Phantom’s Trapped is a story about a man who accidentally gets trapped in a flat of a high rise building. Because of the fact that there are no residents in the building, the building does not have water and electricity connections, Shaurya (Rajkummar Rao) realises only after shifting to the house, as he plans to marry his girlfriend Noorie (Geetanjali Thapa).
One day, after he gets trapped in the isolated house, he realises that there is no one who can help him. Even the watchman of the building happens to be partially deaf. As seconds turns into and minutes becomes hours, he remains there with no sight of help even as night seeps in. Despite all his efforts, Shaurya still finds no way to escape.
What happens to Shaurya in the end, does he become successful in coming out of the isolated house, or does he get trapped forever is what forms the rest of the film.