I watched a movie this morning on one of the Shaw movie channels where right at the end, one person is going to kill another, older man who's sitting at a table. The younger person goes and gets the man a cigarette and then goes to light it when he realizes that the other man doesn't smoke but he is killed when either the sitting man's cigarette kills him or something else does. The movie does have the word kill in it but I think there was another word in front/behind it. I was a bit sleepy at the time and didn't see all of the ending but am sure that it seemed like these were both assassins, one older and the other younger.