complete spoiler Colin Firthstoryline for those who do not have the BBC
Mark, Colin Firth, is in a bar drinking a spirit at £450 a shot, celebrating a deal with a 1 million bonus, he doesn't seem that happy though, he returns to his wife who is pregnant with their first child, who talks of a bigger place, 5 bedrooms, swimming pool, etc, he's far away.
a homeless guy bad mouthed him, he returns and gives him a £100, he returns to him again, he's been beaten up, he gives another money, he donates £20,000 to a charity, and then actively goes out to try and get these people in homes, there he meets a 17 year old, who has left home because her Mum's boyfriend beats her, he takes her to a hostel, she does not want his money but wants him to return
he does and feels, that he is alone, has no one like she does
his liason with the charity warns him about getting to close, this proves wise as she kisses him and asks him to stay the night
he attempts to break contact, but gives her a big envelope of money
she goes mad
and says she loves him
attacks him in the street, he is horrified, looks bewildered scared
goes back to his wife, appologises for not talking to her and quibbling about buying the bigger house
he has a dream about them having 3 children in that garden
he's out in flash car, very loving with wife, turns corner Robert Carlisles character is in the road, angry at him, see's him park down the road
goes up his stair has a knife in his hand, Mark CF answers door
fade to black