There’s an old movie called Single White Female, starring Brigitte Fonda and Jennifer Jason Leigh, from around 1992.
In it, one desperate, clingy, psychotic, needy friend is so jealous and obsessed that she impersonates the other. First, she changes her hair to match.
Then pretends to be her, and even goes after her friend’s man. In (at least) one case, the imposter succeeds. Beds the guy and then kills him.
It isn’t the first time the mentally unstable wannabe has done such a thing. It’s alluded to that she’s done it in the past, killing at least one other girl.
But as I recall, things didn’t end so well for the wannabe. This might not have been her first time pretending to be another person, but it certainly was the last. Her target stands up and fights, defends herself, and kills the wannabe.
I guess it goes to show. No matter how many people you fuck with, there’s bound to be one too many. One that isn’t going to take it, and ins’t afraid to put it to a stop, once and for all. As it should be. Some might call it extreme. Me, I call it justice.