People say that slugs can totally destroy a plant like that over night, but I haven't seen it. IME slugs usually leave just holes, which can be enough holes that the leaves are like lace or skeletonized. But they don't like the big leaf veins. Slug damage:
Offhand to have it totally stripped like that in one night, I would be thinking about varmints. (Roof rats? never heard of that one and I don't think I want to know!). Have you seen rabbits, woodchucks or other critters like that?
I was having seedlings destroyed, like totally disappeared, or cut off at ground level, or nibbled down from the top until there was just a stub. My culprit, I'm pretty sure, was the bunny I keep seeing in the neighbor's yards. I put up a rabbit fence and no further losses.