Telling a story with no dialogue

Whilst researching influential short films online I came across this production, the film really grabbed my interest and intrigued me as it conveys how an effective story line can be so good that it can be engaging without the use of any dialogue.
The film conveys how easily we prejudge people due to tier physical statue and there line of work. I Believe that the strong moral of the film is becomes clear and allows the audience to back the underdog which in this production is a janitor until you are hooked and want to see the denouement of the production.

I have found this influential as I similarly want to create a production that is based around a strong meaning as it gives the production worth and I wish to leave my audience thinking about whether they can relate to my film.

The idea of prejudice and being judgmental has spouted the idea of in my production the "out of time" could be to do with a persons character and they way they treat people and whether as there life draws to a close will they change their ways.