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Tilly, I didn't mention the ending in case anyone wanted to watch that episode. But here is a spoiler. The dead boy was being chased by his friend, who was not a boy, but a 28 yr old man. Can you believe that? He'd been going to lessons for quite some time and had a record for molesting boys. What?!! A 28 yr old man posing as a 14yr old?! Come on! It's akin to that episode of Fools and Horses where Rodney posed as a 14 yr old so they could win a holiday in Spain. Totally ridiculous!