Awakening after a four-day coma following a harrowing car accident in Berlin, Dr. Martin Harris (Neeson) wants nothing more than to return to his normal everyday life. There seems to be one little problem, however: his wife, Elizabeth (Jones), doesn't know who he is and another man (Quinn) has taken over his identity.

All alone in a foreign country with no identification whatsoever, Harris has difficulty convincing the local authorities of his plight. Only one person may be able to help him: the taxi driver who was driving him when the accident occurred (Kruger). Yet, she's reluctant to do so out of fear for her own safety - fears which are quickly realised when mysterious assassins begin hunting them down. As the plot thickens, Harris soon finds himself questioning not only his identity, but his sanity as well, in his mission to uncover the truth behind the conspiracy and solve the greatest mystery of them all: why would anyone want to impersonate him?

Aided by a twisty script, Unknown is a crackling, action-packed film that will keep you guessing from the edge of your seat throughout, thanks mostly to Neeson who makes a welcome return to the action/thriller genre after his ass-kicking turn in Taken. You have to hand it to him; the man possesses a certain gravitas that makes anything he does - from Oskar Schindler to Jedi master - wholly believable. And in Unknown, he leaves us with a performance and a film that we're not soon likely to forget.