In this Chilean film Sin Filtro, Pia is a woman about forty, modern and urbanite who lives in Santiago de Chile. She has a very stressful life, because everyone is overwhelmed and she can not say no to anything.
He realizes that he has to stop when a chest pain does not disappear. That is why, after trying various therapies, he opts for acupuncture, which is what works and takes away the pain.
Acupuncture has a side effect in your case and is that now says what everyone thinks. That frees it at first, which makes stress disappear, but over time it brings problems.
He realizes that always saying what he thinks is not good, because it hurts even the people he loves most, so he will have to do something to control himself and be able to filter everything he thinks and says.