Crossing the line

The hunt for closure about his past leads a detective into a horrific situation...

- CAREN CLARK

A traumatised cop becomes involved in a family's terrifying ordeal in BBC1's twisty thriller Wolf.

The six-part series centres on London-based DI Jack Caffery, who remains haunted by the disappearance of his brother when they were children in the 1990s and is convinced that a neighbour killed him.