Follow the defection of notorious British intelligence officer and KGB double agent, Kim Philby, through the lens of his complex relationship with MI6 colleague and close friend, Nicholas Elliott.

Guy Pearce

Kim Philby

Damian Lewis

Nicholas Elliott

Anna Maxwell Martin

Lily Thomas

Stephen Kunken

James Jesus Angelton

Adrian Edmondson

Sir Roger Hollis

Nicholas Rowe

Sir Anthony Blunt

Monika Gossmann

Galina

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