Uhh, maybe a believable plotline like "Because the protagonist lives on a crumbling bridge with a military-trained dolphin encircled by cyborg psychopaths and Japanese megacorp military types while a highly infectious disease ravages remnant humanity and it's the end of the world?" https://www.imdb.com/title/tt0113481/
Hah! I only just watched that again a couple of weeks ago. With every re-watch I'm reminded of how terrible that movie is, and with all the passing of time between re-watches my memory of it continues to improve it until it seems worthy of another re-watch, and then I'm disappointed again.