There are several movies that feature an elevator as the primary setting, from "Devil" to the aptly named "Elevator." This is the worst of the lot.

The protagonist is a cookie-cutter shallow businessman who sleeps around on his wife and treats everyone like his minions. Since the movie doggedly stays with him, 85% of the scenes do take place in the elevator. And man, does it get old. The first half of the movie depicts him calling the building engineer, the elevator repairman, his wife, his assistant and his secretary in a series of conversations that proceed as follows:

Businessman: "I'm stuck in the elevator, please help me!"

Other Person: (nonchalantly) "Oh, I'm sure everything will be fine. I am just casually stuck in traffic/watching TV/checking the generator. Hmm, what's that I see?" (pause) "Oh no! HELPPPPP!" (screaming)

(Call disconnects)

This would make a fabulous SNL sketch for the end of the world, but a terrible movie.

The End? can't come soon enough.

The first twenty minutes are entertaining and I wanted to see what's next. Unfortunately there's nothing next. Main character (not at his best) speaks to many people on the phone and most of them get killed, then some zombies arrives to him but he's stuck in the elevator and he's able to stay safe. Then Marcello the policeman pop up and he's like the most italian (roman) guy in the world, but he acts like he just escaped from an american horror movie (and this pretending to be american is one of the most common errors in italian movies). And so on, nothing is really developed in this movie and it's the same from start to end. Like always: it could have be a decent italian horror movie, but not this time.