This is a rather charming little six-minute short film. The website says
A barber welcomes a most unusual customer. The Haircut is a film about the thin line between vanity and delusion, and how the customer is always right.
and the commenters seem to think that there’s a mental illness issue at stake, but I “read” it somewhat differently.
It seems to me that the customer is fully aware of the reality of the situation, which led me to wonder if perhaps he was supposed to have lost his hair through some illness – making the film more about nostalgia than vanity. What do you think?