Trying to find title of a tv programme from years ago..?!

There was a 2 part TV film on a few years ago It was about a killer who targeted people who were posted on a website!.!. It is set in the UK and is shot in a "shallow grave" style!. 3 younger people are sharing a flat and one of them is into his computers and comes across this website!.!. The police get involved and at the end of the 1st part /start of the second a police woman jokingly tells her boss to put her in as an experiment!.!.!. One of the guys drives a red MG midget that goes missing for a day when they go out drinking!.!.!.!. I am trying to remember the name of it as I would love to see it again!.!.!.!.Www@Enter-QA@Com

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