A truck bomb in busy Borough Market kills hundreds of people and devastates the surrounding area. It’s London’s 9/11, and with all but one of the alleged co-conspirators who supposedly plotted the attack killed while being arrested — funny how that happens — the heat is on to ensure that the trial of the sole bad guy left, Farroukh Erdogan (Denis Moschitto), gives a good show to a grieving city and nation. “Show trial” would almost be the right term for it, except that it’s all happening in secret, away from cameras and — to make you gag on the injustice — secret evidence that’s kept even from Erdogan’s defense. Rage and paranoia at the near police state the “free West” has become infuses Closed Circuit — the title refers not only to the cameras that cover London’s streets but also the panopticon eye of security and intelligence agencies that spy on us “for our own good” — as director John Crowley (Boy A) creates a creepy menace around kinda-sorta working together defense attorneys Martin Rose (Eric Bana: Hanna) and Claudia Simmons-Howe (Rebecca Hall: Iron Man 3). They’re brought in separately to handle different bits of red-hot evidence, and they’re not supposed to be in cahoots — the “secret evidence” must stay in its individual secret boxes — except they used to be lovers and they just can’t help but compare notes. Oh, and they know they’re being “managed,” they’re just not sure why at first. Bana and Hall are as engaging as ever here, and the plot is pretty gripping at first, but then screenwriter Steven Knight (Hummingbird) starts giving over to rote thriller idiocies — like allowing too many stupid mistakes by the supposedly near-omniscient MI-5/MI-6 — and cheats: in one scene, Rose grills a witness by asking him important questions that we don’t get to hear, lest we figure it all out too soon. Secret plot points! Still, the film raises intriguing issues revolving around the “War on Terror” that need to be talked about. I wish this film did a better job with them.