Thriller: Appropriate Adult, ITV, 9pm
Voluntary worker Janet’s relationship with Fred West ( played by Dominic West, left) enters a new phase when she makes a series of visits to him in prison in the final part of this drama. She tries to persuade him to divulge details about other victims and the participation of his wife in the crimes. As the case unfolds, she becomes ever more involved with the suspect, which ultimately proves to have shattering consequences for her at Rosemary’s trial. Co- stars Emily Watson.