Second in the new four-part drama starring Ray Winstone, Mark Strong, Phil Davis

While clearing out his old headmaster's house, Graham stumbles across a hoard of old school files - and uncovers a terrible secret about his wife.
Contains violence and strong language.
See today's choices.
(Repeated on Friday at 11.20pm)
(Digital widescreen)
Old boys' network: page 26

Then Five Go Mad in the Kitchen
Shown yesterday 7.25pm
BBC1 Information and Fund-Raising: buy 11 recipes in Five Go Mad in the Kitchen for f from Oxfam, Sainsbury's and selected branches of Dillons, Hammicks and Waterstones; at least 75p per book goes to Comic Relief. For a fund-raising pack or further information call [number removed] (calls cost 60p per minute with a percentage going towards Comic Relief's costs)