Overview: Special that gets up close and personal with US hit drama Haper's Island. Narrated by Fearne Cotton, it goes inside the terrifying world of Haper's Island with exclusive cast interviews, behind-the-scenes footage and an insight into how a top US drama is put together. Focusing on the killer who ran amok during Henry and Trish's wedding week, it unearths the key clues to his or her identity, as well as revisiting the show's real location in Canada with actor Adam Campbell.