'Closed Circuit' Trailer: Eric Bana, Rebecca Hall Are Being Watched (Video)

The thriller, directed by John Crowley, revolves around a terrorism investigation in the U.K.

Nothing appears to be as it seems in the first trailer for the terrorism-themed thriller, Closed Circuit

The plot revolves around a pair of once-romantically involved attorneys (Eric Bana, Rebecca Hall) who are tasked with defending a man who is alleged to be involved in an apparent truck bomb explosion in the U.K. But there seem to be larger forces at work.

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"There are over half a million closed circuit cameras in London," says Bana grimly in the trailer. "And I'm sure there are at least half a dozen watching you right now." 

The Focus Features and Working Title film also features Julia Stiles and Jim Broadbent.

Eric Fellner, Liza Chasin and Tim Bevan, who produced the film adaptation of John le Carré's Tinker Tailor Soldier Spy, are producing Closed Circuit.

Its release date is set for Aug. 28.