British 90s Sci Fi/Thriller

[thewf]

Bit of a long shot, I'm trying to track down a British telemovie (possibly a short series) from the late 80s/90s. I don't have the name, but the general plot was a shadowy organisation (always seemed to be wearing sunglasses) who were spreading these green brain/cabbage like pods around the country. When the pods opened up a green plasma came out that took over your mind and caused you to be evil/brainwashed like them. There was also a scene where the good guys were hung up in a steam room by the bad guys.

Was very dark, horror-style.

Any pointers appreciated.

[Cartimand]

Re: British 90s Sci Fi/Thriller

Sounds a bit like a mash up of Dark Season (especially the sunglasses bit) and Day of the Triffids.