Touching. Not ordinary and not comfortable term for define a horror. But in this case well works because the horror covers a story familiar for part of audience.
The grief of young woman after the death of her mother. An old telephon in a box. On its back a message and a phone number. The gesture temptamting many from us in that circumstances. The phone call and its consequence. And it is enough for define Sunflower as pretty different, not ignoring precise use of recipe of genre.
A beautiful short film for fair dose, wise used, of realism. This inspires a sort of gratitude for Vincent Dormani work.