Critics Consensus

Liam Neeson elevates the proceedings considerably, but Unknown is ultimately too derivative -- and implausible -- to take advantage of its intriguing premise.

Synopsis

Liam Neeson stars in this taut thriller as a man who regains consciousness after an auto accident only to discover that another man is impersonating him, and that no one -- not even his wife (January Jones) -- recognizes his identity as the real Dr. Martin Harris. Finding himself with an unexpected ally (Diane Kruger), Harris struggles to solve the mystery and hang onto his own wits, while also being stalked by anonymous killers.