What starts out as a simple, reckless mid-life affair between a genetic scientist named Yvonne and a Westminster paper pusher takes an intriguing turn when she realizes he’s a spook – then suddenly gets very dark indeed. A provocative study of obsession, longing and just how far down a criminal path desire can take you.
Top Billed Cast
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Emily Watson
Yvonne Carmichael (4 episodes)

Ben Chaplin
Mark Costley (4 episodes)

Mark Bonnar
Gary Carmichael (4 episodes)

Steven Elder
George Selway (4 episodes)
JH
Jack Hamilton
Adam Carmichael (4 episodes)

Susan Lynch
Susannah (4 episodes)

Lydia Leonard
Bonnard (4 episodes)

Olivia Vinall
Carrie Carmichael (4 episodes)

Anneika Rose
Dr Sadiq (1 episode)
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