*Spoilers* Were the tunnels supposed to be....

That was one of my theories as well. It's basically the only way that fits with the ending, somewhat, meaning that she dies.

However, it fits weirdly with e.g. the way she discarded her daughter for "the way"... unless you interpret the discarding as her coming to terms with whatever happened to the daughter, which is kind of a stretch.

It also doesn't quite explain the beginning of the movie, getting picked up by the guy, unless that was just in her head as well, but then the whole movie kind of falls apart, I think.

I think this movie showed potential. The setup could've lead to many interesting resolutions, but I think the ending did throw most of those interpretations out the window...

Just caught this on Tubi, and thought it was a really satisfying watch…even though I might not have completely understood all of the details.

The way I absorbed it is that both were abducted as he was attacking her. It didn’t even occur to me that there was an alien element to it until she bumped into her attacker in the tunnels as well.

I think that she may have been fatally wounded in the attack, but was still alive when they were abducted. There was an alien in the tunnels that would heal her when she got wounded, but the interesting detail about that alien is that it produced a needle when she was about to give up, and then simply healed her when she changed her mind.

I suppose it’s possible that she was in an emergency room while she was imaging the whole scenario, but I personally think it was an abduction with a scenario created by the aliens. I think it was the aliens testing her will to live.