Complex sentence: Killer Net is set and many scenes are filmed in Brighton, East Sussex, however the scenes set in Brighton on the actual game "killer Net" are all filmed in Islington in, and around the Camden Passage antique area.
Split into simpler sentences: Killer Net is set and many scenes are filmed in Brighton, East Sussex. However the scenes set in Brighton on the actual game "Killer Net" are all filmed in Islington in and around the Camden Passage antique area.