In the taut legal thriller Closed Circuit, directed by John Crowley, a high-profile terrorism trial in London becomes a dangerous web of conspiracy and surveillance. When a bombing at a bustling market kills dozens, the British government charges a single Turkish immigrant with the crime, but the evidence against him is so sensitive it must be presented in a closed court session, shielded from the public. This requires two separate defense attorneys: one for the open proceedings and one for the secret evidence. Eric Bana stars as Martin Rose, the barrister handling the public trial, who is shocked to discover his new counterpart is Claudia Simmons-Howe, played by Rebecca Hall, a former lover with whom he shares a carefully hidden past. As they navigate the opaque legal system, they uncover unsettling signs that the case is being manipulated by shadowy intelligence forces. With Jim Broadbent as the Attorney General and Julia Stiles as a mysterious government liaison, the duo must determine who they can trust while knowing every move they make is being watched. The film maintains a gripping, claustrophobic atmosphere as it explores the tension between national security and justice, forcing its protagonists to question whether the truth is even worth the deadly risk.