Make Up (2019) on Netflix

Plot summary

A caravan park in Cornwall is where Ruth's boyfriend Tom lives and works, and she arrives to join him. She meets Shirley, who manages the site, and Kai, who handles maintenance. The following morning Tom leaves for work, wanting Ruth to ask Shirley about work of her own. Cleaning the caravan instead, Ruth notices red lipstick on the mirror and long red hairs in Tom's clothes. At the laundry she sees Tom talking to a girl with red hair, then loses sight of him. A strand of the same hair is caught on a wooden beam. Flustered, Ruth drops her money, and Jade, who works at the site, helps her collect it. That evening Tom and Ruth argue about work. When Ruth asks whether he knows a red-haired girl, he will not say.