Bob, here’s a technique I stumbled across on the Sony Vegas forum a few years ago.
Put 3 filters, a “Invert” (at 100%), “Color Corrector”, “Invert” (at 100%).
Then lift up the gamma of the color corrector in the middle.
This darkens highlights first, in the logarithmic fashion, more like a “iris closing” way.
You can also put a color corrector secondary to select reds and lower the gamma a bit.
Here are two screen shots for you.
The first one is the setting I used.
The second is after my (rather limited) attempt at correction.
I masked the singer on the right so that any adjustments would only affect her.
Feel free to play around as needed. Good luck.

