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Season 1 · Episode 27
0.032mJuly 20, 2026
When a brilliant intelligence officer from MI6 is discovered dead inside a padlocked duffel bag in his London flat, investigators face an impossible crime scene—no signs of forced entry, no fingerprints, and theories ranging from suicide to espionage—as the shadow of secrecy around his work at GCHQ breeds one of the most perplexing mysteries in British intelligence history.