Titled as "Sweet as Sugar" on some US PBS broadcasts. Although description doesn't seem correct either.
Many of the actors in this episode have worked with Tom Ward (Alex Seymour) who played Dr. Harry Cunningham in Silent Witness (1996). He co-starred in the two-part serials:
. First Casualty: Part 1 (2011) with David Ajala (Louis Nelson) who played Mark Blakefield.
. Paradise Lost: Part 1 (2012) with James Cosmo (Roger Seymour) who played Arnold Mears, and
. Intent: Part 1 (2010) and Domestic: Part 1 (2012) with Gary Carr (Sergeant Fidel Best) who had many roles.