A traitor threatens to undo British Intelligence's sexiest marriage in a fun Soderbergh movie about what lies at the heart of any good relationship.

A scene involving George’s clandestine surveillance of Kathryn during a satellite handover is still a tense affair that has a literal countdown clock in play. But what makes the Black Bag difference is the fact that SigInt expert/bad girl Clarissa (Marissa Abela) also uses the opportunity to attempt to flirt with her older co-worker.