The title pretty much says it all. It had to have been in the 1980s, English speaking movie or tv movie where a Buffalo Bill-type is obsessed with a singer and meets her outside of a club or something, they tussle and he falls on top of her. He has a major crystal necklace around his neck that allows him to “become” her. I even think I remember seeing his body melt into hers. I was VERY young and it freaked me out pretty bad so I still remember it, just not the name! Help!