A discarded trainer lies on the ground, behind it a mobile home gutted by fire, in the distance rooks caw hoarsely in the damp morning.

Welcome to series three of the superior English/Welsh detective drama – think The Bridge with more sheep and rain – and things are as picturesquely moody as ever as DCI Tom Mathias (Richard Harrington) looks into the death of a minister.

He was a godly man, perhaps too godly for the local vet and his family who lost a child and found the minister keener on bashing the Book than giving spiritual comfort.

But did one of them do it? Previously on BBC1 Wales.