Deadwater Fell writer Daisy Coulam hopes dark finale will ‘shine a light’ on coercive control

Deadwater Fell, starring David Tennant, was a ‘study of a man who kills his family’ (David Tennant)
Warning: This article contains spoilers for Deadwater Fell episode 4.
Deadwater Fell writer Daisy Coulam wanted the drama to be ‘a study of a man who kills his family’.
In the final episode on Friday night it was revealed that Tom (David Tennant) was responsible for the deaths of his wife and children, injecting them – and himself – with insulin before setting f