Random characters but I think I'll put them in a story I'm writing now... Anyway...
Rosemary and Derek were little dolls that were dancing in a music box but a girl broke the music box and Rosemary fell out of the box, she never met her 'husband' again. Since that say, she kills any person that gets in the house where it is the broken music box. If you go out of that house you can hear Rosemary crying and the little girl, which broke the music box, screaming.