It's not a feminist movie, it's a realistic one. It depicts the hard life of women and how our capitalist and misogynistic's society treat them.
How women have to bear the burden of their entire family. And how motherhood and marriage are a trap.
But this movie show also how men are useless, how they do not react even when their loved ones are hurt/sick. How men do not react at work when they see sexual harassment, sexual violence.
It was painful to watch because it was so realistic, in every scene, in every dialogue, Kim Ji Young has to be the strongest one, her mother, her sister too. And the men in her family? Useless.

If you want to get married and have kids, watch this movie before.
If you're a empathetic man, watch this movie, you'll learn things.
I'm glad i have watched it.