Performances wise, there's nothing to praise greatly as everything happens in a stillness. But the expressions and the voices rendered were the highlight. Except Tom Hardy the remains were like Scarlett Johansson from the movie 'Her'. If you see, the story in which the dialogues involved through telephone conversation were the typical and predictable. But the way they used to tell it was made all the difference in here. The movie completely reveals the main character whose family and professional lives begins to take a rough road when he decides to correct his mistake. Kind of unleashes how men stabilized his personal life and job affairs together.
You make one mistake, one little mistake, the whole world
comes crashing down around you. 
Very much satisfied with the movie. Kind of refreshing from the regular entertainment dramas. If you watch, sorry, if you hear this movie without the visuals you won't find any difficulties to understand. Because all you can give best shot to get it is to paying close attention by listening the phone conversations which covers 90% of the movie. Something like an audio book and you will generate your own images throughout. Most of the people in the world do not prefer drama films, they want fast paced entertainment. But if you have no objection for giving a try for experimental presentations, then here it is that you must not skip it and liked it or not comes afterwards.
7/10