The basic virtue is the high realism of story.
An actor visits an ordinary guy. The motif is simple and painful. Their talk in garage. A phone video send by guest to his wife. And a tensioned moment under her eyes.
It is easy ( and fair ) to admire the beautiful acting and the precise construction of story.
But the first virtue of film is to offer a clear perspective, provocative in huge measure, about racism, bullying, trolls hate messages , vulgar - stupid envy , power offered to immature people by social media and the precious lesson as simple form of revenge.
A great film for the wise manner to explore a terrible aspect of ordinary every day reality.