The title is somewhat misleading as the Bangkok "massage" know as Yum-Yum and Boom-Boom can be seen more in-depth on Y/T with lots more explicate scenes. A 70 year old widower, who has never travelled beyond his native village, all of a sudden realizes he is Old" and wants to have sex, just one more time. He tells some relatives who either "judge" him or ridicule him in a cruel was, behind his back. He gets brave and travels to Bangkok Thailand in search of a sex partner. First he gets tricked in to just seeing a stage play. Then hires a hooker but falls asleep while she is showering which prompts her to just leave without any "action" taking palace. He then meets a beautiful Russian girl who is travelling around, just SEEING the world. Realizing that he hasn't really LIVED, he decides to join her in her travels. Now he is starting to really live and enjoy the time he still has on earth. Aside from the happy ending, the rest of the movie is all about ridicule and extreme "judgement" by his entire family. The sooner he gets away from all of them the better. The loneliness of being single in old age is explored throughout the movie. I didn't find much to laugh at but I suspect is was made as a comedy for Indian audiences.
Review of Thai Massage
