Man meets another man in a city, i think in Asia or London, drama or romance?

i have vague memories of watching a trailer years ago. i think a black man meets an asian man or vice versa in a city. in the trailer there’s a lot of looking out the balcony/building shots, its pretty dark tones. think it was just a slow burn indie drama, potential romance. or just a friendship. dont remember title or actors or plot tbh