Secrets of strangers

A regular weekday morning veers drastically off-course for a group of strangers whose paths cross in a London cafe - their lives never to be the same again when an apparently crazed gunman holds them hostage. But there is more to the situation than first meets the eye and as the captives grapple with their own inner demons, the line between right and wrong starts to blur. Will the secrets they keep stop them from escaping with their lives?