Doctor Who 33.12

• Even without the gimmick of a Doctor-less first act this one is a delight from start to finish.
  
• Diana Rigg and Rachael Stirling are both simply excellent guest stars.
  
• There is a great mixture of humour and menace.
  
• The final scene (Angie and Artie) is pretty bad, it must be said, but no matter! The rest is a classic.
  

10/10