The film's attempts to expose flaws in the criminal justice system or give insights into the war against terror seem superficial, but Closed Circuit is entertaining in a sub-Hitchcock way.

This is a genre I usually enjoy and while CLOSED CIRCUIT has some shortcomings it's a thought-provoking thriller.

Some moody night-time London location work from cinematographer Rob Hardy almost saves the day, but overall it's a losing battle.

It's a cold experience, unlikely to shake up anything but a big 'meh' and a feeling that more than a mere hour and a half was wasted.