What is the name of this film?

I'm getting crazy. I saw a movie some time ago (can't even tell if it was on Netflix or Sky) and absolutely can't remember what it was called, let alone who the actors were. Think I've already read through the internet.

The following action:

A woman forgets or suppresses the fact that her daughter is dead and continues to live as if she were still there. The husband and the rest of the family play the game because nobody wants to put this heavy burden on them again. The man regularly visits the grave in secret, but at some point the woman becomes suspicious (she thinks he is cheating on her) and follows him to the cemetery. There she discovers the truth.

I know it's not much, but maybe someone knows something. 😭

The description reminds a bit of "The Others" with Nicole Kidman.

I've already seen it, but unfortunately it wasn't.