DVD: Unknown, Optimum, For rental & retail

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This superior Hitchcockian thriller stars Liam Neeson as a scientist who has a car accident while he's at a conference in Berlin.

When he wakes up from a four-day coma, he returns to the conference to find that someone has stolen his identity – and even his wife (January Jones) is siding with the imposter. It's a fun, old-fashioned mystery with some elegant twists and an explanation that just about makes sense.