Byzantium is ordered to kill Jack Turner, but when the assassination attempt fails, Sam is exposed as a spy, and trapped inside the house. Turner produces the evidence he has against Byzantium's client, while Sam - secretly being poisoned to death - at last begins to recover terrible memories that explain why the Hourglass conspirators want her dead.

Cast: Melissa George, Maddy Griffiths, Jane Riley, Adam Rayner, Morven Christie, James Daffern, Eloise Smyth, Patrick Malahide, Tom Beard, Oscar Kennedy, Stephen Campbell Moore, Adewale Akinnuoye-Agbaje, Lex Shrapnel, Souad Faress, Stephen Dillane