With its low budget graphics and apt backsound, it's rather success in delivering a touching narrative but also will haunt your night for especially the metaphors of everyday life's problems (who am I kidding, there literally is a list of warnings in this game page :'D )
n.b. I had achieved the other 6 endings, but stuck in the search of the 7th... It may be cloistered because of the bugs at The Bridge that have been mentioned by Neco The Sergal below, or may be there is a Bad Ending with The Drifter...