Looking for a story

I am looking for a story I read a couple of years ago. I'm not sure whether it was here or on FM. The story was about an alien invasion. Men (and women?) were taken aboard the alien ship and converted mentally and physically by a plant in a chamber making them very compliant, however, not all were made incapable of mentally resisting. A revolt is eventually made on the mothership. That's about all I can remember. Does this sound familiar to anyone?