If Eli Roth co-wrote this..

I'm not sure where that is coming from. I always thought this was based on the old twilight zone episode "button, button". It doesn't go all into the end plot that this movie does, but honestly, it is pretty much identical. I would think it was copied from that twilight zone episode, so I don't really think anyone wrote it. They may have tweaked it, but that's not the same.

maybe it is falso info. this does not read roth AT ALL.

I don't think Roth co-wrote this, he was originally supposed to direct which is interesting to think about because I think that if he had this would've been a completely different movie.