This first series, hosted by James Bellini, set had a blue and white theme with the suspects having to walk down ramp and steps to arrive at their seats with the teams sitting in a high rise area with white triangular desks.
In this series, each team is made up of one celebrity and an expert in a field linked to the murder in some way.
As well as the Christmas special, there are 300 members of the studio audience to which some are seen in the background risers behind the teams and the suspects and vote halfway during the show to see whom they think the killer was.
Both team members were celebrities, one of whom was Leslie Grantham who would go on to portray Colonel Mustard in Series 4.
Richard Madeley introduced each episode from Arlington Grange, showing the possible weapons to the viewers.