Same as Judwaa series. The Guest in Landon is having a similar story like the film Atithi Tum Kab Jaoge film. Only the difference is of Location one is in Landon and one is in India. Both the film are very much similar so if are planning to watch it in theater then you should cancel your plan. Watch it whenever it comes on television. Don’t waste your money. Instead you can watch many other movies like Gazi attack and all.