Can anyone remember what movie is this?

I remember watching a film on tv when I was a kid. There was something like monsters, or ghosts or zombies that were terrorizing a town, and the protagonist had this girl that he liked, and she helped him fight him or something like that. What I remember the most is that in the end the girl was dead all along, and the protagonist turns on the radio and hears that she had dedicated a song for him or something like that.