What is the name of this asian film?

So all i can remember its a guy in a train, from the future. All the females from the train are like robots. He is waiting for his stop (i think to go back to the past). and at the same time we are watching events from his past. He was always falling in love, i remmber there was a girl he fell in love with who lived right next to his apartment(thats the name of the film, the number of the chicks apartment). But he lost her, so then a hooker moved where the female lived, and he started dating her. but she charged him $10 each time they had sex. She then fell in love with him, but he got over herr.