Murder! The latest in the series of TFL Awareness Test campaigns features a Cluedo – esque Whodunnit mystery. Featuring a trench-coat wearing detective interviewing a line-up of suspects for the murder of Lord Smithe. As he goes around the room questioning each person he then names the killer! However this is a merely an act of distraction as he then shows that 21 things have been changed in the room as the filming has taken place. Paintings, props, rugs and even the murder victim are switched as they then show a ‘behind the scenes’ shot of the crew moving the set about during the filming.