Memory follows Alex Lewis (Liam Neeson), an expert assassin caught in a moral quagmire. When Alex refuses to complete a job that violates his code, he must quickly hunt and take down the people who hired him before they and FBI agent Vincent Serra (Guy Pearce) find him first. Alex is built for revenge but, with a memory that is beginning to falter, he is forced to question his every action, blurring the line between right and wrong.