If what gripped you in The Night Manager was how Burr’s off‑the‑books operation keeps colliding with the very officials protecting Richard Roper, you’ll love how Thomas Kell digs into the vanishing of MI6 chief‑designate Amelia Levene. The investigation snakes through North Africa and Europe, exposing the same kind of hush‑hush maneuvering and institutional complicity that blocked Pine’s bid to bring Roper down—only here the knives are out inside the service itself.

If you savored the gradual, nerve‑tightening build of Pine’s infiltration—earning Roper’s trust, dodging Corky’s suspicion, and waiting for Burr’s careful chess moves—Greene’s portrait of Maurice Castle will be your speed. It’s a patient unraveling: drab offices, coded phone calls, and tiny choices that snowball, echoing the way Pine’s cover life and real loyalties grind against each other until something breaks.

If you were drawn to Pine’s interior conflicts—his grief over Sophie, his feelings for Jed, and the cost of living a lie—this Hamburg tale cuts just as deep. Banker Annabel Richter, spymaster Günther Bachmann, and the haunted refugee Issa Karpov become pieces on a board where idealism curdles into realpolitik. Like Pine and Burr’s operation, every motive is probed, every betrayal personal, and the ending lands with the same bruising inevitability.

If Pine’s tightrope—posing as a criminal fixer to penetrate Roper’s arms network while seducing Jed under false colors—hooked you, Milo Weaver’s life in the CIA’s “Tourism” section will resonate. He’s brilliant, burned‑out, and compromised, forced to weigh loyalty against conscience as bureaucrats pull strings much like those that hampered Burr’s hunt. It’s the same morally gray pressure cooker, with a protagonist who knows he’s part of the problem.

If you liked how The Night Manager layered Pine’s present‑day undercover work with past tragedies (Sophie’s death, his soldiering) and competing agendas (Burr’s team versus Whitehall), Restless delivers a similarly rich mosaic. Ruth discovers her mother Eva was a WWII spy for a manipulative handler, and the narrative braids Eva’s missions with Ruth’s present, revealing deceptions that slot together with the same satisfying click as Pine’s long game against Roper.