This sounds like a brilliant Welsh language film that is being shown in different locations during March and April. According to one review -
“It’s rare indeed to see a Welsh-language genre pic with such a subtle political subtext. So thumbs up to the Hinterland crew for their achievements with this gorgeously filmed, powerfully acted ghost story.”
It starts in Aberystwyth on Thursday 10th March, then Chapter Arts in Cardiff on Friday 11th. After that it’s up to Theatr Clwyd for Weds, April 27th. See the link below for more information.