man (on phone): can i speak with sgt. hathaway? yes, he's here. all right, hang on. metropolitan police want a word. (phone rings) hi. did you find out anything? well, it's the answer i expected; i'm just not sure whether it's the answer i wanted. thank you. what's all that about? simon monkford, con man, the early years. is that all? yeah, for now. there are complications. (phone rings) inspector lewis. all right. okay, we'll be right there. there's been a break-in at professor gregson's house. anyone hurt? apparently not. but there's a bit of a mess. you stay here, carry on with these. you're better at all this than i am. and you're better at messes? i have my moments. they seem to have targeted my study. nowhere else? nowhere else. i don't lock my door, so once you're inside the house, it would be alarmingly easy. who else has keys to the front door? all the people who live here and all the people who've lived here in the past. there must be dozens of keys around oxford. do you have anything valuable? well, a computer, cd player, some of the books, i suppose. we'l