The trailer of the movie pretty much sums up exactly what it's about . It's like Blake Lively's "The Shallows", but on a 2000 foot tower . I found this incredibly entertaining with a lot of very well shot action sequences and sometimes logic defying scenes, that are still well thought out and somewhat believable in the context of a B-grade movie . The way the movie'a been shot really will give anyone with a fear of heights goosebumps . My only complaint was with the somewhat whiny and often incredibly annoying character of Becky who is often severely overshadowed by the much more entertaining and easier to watch Hunter.