Weird thigs not explained
There were so many things about this movie that were "Twilight Zonish". The hospital scenes, for example, didn't look like modern American hospitals-- a creepy ward with many beds and only one patient, and a huge, dark, shadowy, open hall with patients roaming about or on gurneys The chatty nurse that let "Eye" in so easily was another.
The operators who communicated with the agents were sitting around a table in an empty room--this just looked weird, too. It made me think this was all otherworldly, in some way, and I thought it would all be explained as some sort of supernatural or "angels" story, or perhaps Purgatory, but I guess it turned out not to be that and was just a poorly written, unfathomable plot.