It's the final case for the UCOS team for a while, and it's one that leaves them scratching their heads in despair. In 1983, 16-year-old Amy Taskerland was murdered on the night of the school disco. More than 30 years later, Miller and co delve back into the case, and start by interviewing Amy's best friend Harriet and her former teacher Mr Hines. But it's a tape made by the victim which features a strange mix of music and poetry, including words from a speech written in secret for the Queen for broadcast in the event of a nuclear war. But how did Amy get a copy of it, and was its secret nature the reason she was killed? But it's not all work and no play - Miller enjoys her first romance since her divorce, while Gerry goes on his future son-in-law's stag night. Amy Nuttall (Emmerdale, Downton Abbey) and Jack Shepherd (Wycliffe) guest star. Last in the series Director: Keith Boak. Actors: Denis Lawson (Steve McAndrew), Nicholas Lyndhurst (Danny Griffin), Tamzin Outhwaite (DCI Sasha Miller), Dennis Waterman (Gerry Standing), Anthony Calf (DAC Robert Strickland) (2014)