Lord Curzon Ki Haveli is a dark mystery comedy set in England that revolves around a couple, Rohit (Arjun Mathur) and Sanya (Zoha Rahman), who invite her friend Ira (Rasika Dugal) and her husband, Dr. Basuki Nath (Paresh Pahuja) over for drinks. Rohit and Ira stay in a remote mansion on the outskirts of the city to while Basuki is an Indian-born man who has secured British citizenship. After a formal introduction and few chats Basuki starts feeling out of place as his controlling behaviour towards Ira spoils the mood of the get-together. Things go awry when Basuki enquires about a giant trunk lying in the dining hall and Rohit jokes that it contains a dead body. What happens next forms the rest of the film.