I love how concentrated this film is. The movie even without heavy plot surrounds its focus on just one night that impacted both characters for the rest of the film. What I really was able to appreciate about Russell and Arinze was their ability to add such a nuance to their emotional back-and-fourth conversations. You felt each actor process and think each delicate situation in the film.
This movie didn't need constant emotion and many characters because the focus is on something more detailed and less dramatized. This is the type of film you see as snip-its from an actors day-to-day life rather than a cherry picked group of scenes with dramatic moments that make the viewer always on the edge or emotional. In the mix of dramatic and emotional moments, there are solid moments of lighter dialogue and body language that speak heavily to how the characters are feeling throughout the whole film and that's what sold it for me.