If you have the Hearthfire dlc, you might have encountered a situation where your spouse was kidnapped by some local bandits. This happened to Lydia and halfway through my rescue attempt, the quest prematurely completed itself before I was able to free her form her cell. I didn't think anything was wrong was until later when I noticed she started walking backwards or walking in place, and even shaking occasionally. I did some research and it turns out that since the mission ended before I could free her, she still acts as though she's in the prison cell. Their have some been suggestions for a fix, but does anyone know anything that's confirmed to work?