But what happens when the worlds of safety and privacy collide? The film "Closed Circuit" asks that question.
The new thriller begins with a terrorist attack in London. "Closed Circuit" is a title that refers to cameras, which have become so much a part of our daily lives.
Rebecca Hall and Eric Bana play lawyers and former lovers who make a decision to keep their previous affair a secret when they're hired to defend a terrorist.
Defending him would be tough under any circumstances. In fact, his predecessor on this case did not survive after figuring out all is not as it seems here, and nor is he.
Julia Stiles plays a reporter for the New York Times in a tangled tale that hooked me from the start, and kept my attention until the final credits, thanks to equal parts of fear and paranoia.
"Closed Circuit" is the best kind of thriller: one that puts you on the edge of your seat and keeps you guessing, while also getting you to think about more than just what's going to happen next.