From IMDB:

Follows detective Matthew Venn as he returns to an evangelical community in which he grew up to attend his father’s funeral.

From Amazon BritBox:

Following the discovery of a dead body, DI Matthew Venn is led back into the community he left behind – and the deadly secrets that lurk there.

From Amazon BritBox you can stream the 4 episodes of this single season production. Each episode lasts exactly 46 minutes.

DI Matthew Venn’s investigation of the death of a Simon Walden leads him back to the religious cult in which he was raised, and to which he also returns for his father’s funeral.  Years before Matthew left the cult because he is gay and therefore was considered by the cult to be a sinner.  Matthew lives with his partner Jonathan Roberts who works hard to bring comfort and self-acceptance to Matthew who battles the guilt inculcated into him by the cult.  Eventually we learn how involved the cult is in the death of Simon Walden. Along the way Matthew tries to make peace with his mother Dorothy Venn.

Two notable actors are:

• Martin Shaw plays Dennis Stephenson the leader of the cult. Martin Shaw may be familiar to you as Inspector George Gently. In this production he was 76 years old.
• Juliet Stevenson plays Dorothy Venn, Matthew’s conflicted mother. Juliet Stevenson has a huge resumé.  My earliest recollection is her role as “The Politician’s Wife”.  In “The Long Call”  she is a aged, somewhat haggard woman. During production she was 65 years old.  In “The Politician’s Wife” she was a mere 26 years old. How time flies!

Well-done and worth a DO NOT MISS!