Don't know why this one came to mind today, but it's killing my I can't remember. Was even trying to use ChatGPT and couldn't come up with an answer. Here's what I've got so far...

1. Interracial Couple Making a Documentary: The series involves an interracial couple, film students, who initially set out to make a documentary on a different subject.
2. Visit to Boyfriend's Home: The couple visits the boyfriend's home in the UK or Ireland. A few awkward meals with the mother. They make multiple mentions that the town used to be a great holiday spot until the killing of the father. Flashbacks of local media from 20-30 years ago.
3. Boyfriend's Father: The boyfriend's father was a police officer who was reportedly killed in the line of duty. However, it’s revealed that he was actually killed by someone he had captured.
4. Change in Documentary Focus: Upon learning of the boyfriend's father’s death and the mysterious circumstances surrounding it, the couple switches their documentary focus to investigate who killed the boyfriend's father.
5. Dark Family Secrets: The couple uncovers disturbing secrets about the boyfriend's parents, who were involved in very disturbing activities. Filters won't allow me to elaborate. During these acts, the parents wore masks, with the mother wearing a mask with deer antlers (possibly).
6. Local Pub: The couple visits a local pub where the owner’s son, who is the boyfriend’s childhood friend, helps them investigate what really happened.
7. Discovery of a Recording: Toward the end of the series, the girlfriend finds a recording that reveals the truth about the boyfriend's father’s death.
8. Chase and Injury: The mother chases the girlfriend after she discovers the recording. The girlfriend slips and hits her head, leading to her death (I think?), and as a result, the boyfriend never finds out what actually happened.
9. Limited Standalone Series: The series is a modern, standalone limited series, released within the last five years, and it was originally produced in English.

Any help would be appreciated!