Movie / TV Episode from 90's Where Sleeping Subjects Share a Dream World?

I’ve been trying to find this for a while, and not sure if it was an episode of some sci-fi TV show, or a made for TV movie.

Plot was bunch of people in a mansion, who think they can’t leave because there’s a nuclear winter outside. An evil businessman type seems to be in charge and has affairs with different of the women, while there’s a hero who is trying to figure out what’s going on (as people change their personalities from moment to moment).

The big reveal is that all the people are in some sort of coma and are sharing dreams. The evil businessman figured this out (or created the situation?) and is getting his kicks by exercising power over all the other sleepers.

Can someone tell me what this is from?

It is an episode from the 90’s Outer Limits revival, I remember that episode but not the name.

Thanks. Found it at IMDb–it’s “The Refuge”