Leonardo Shelby ( Gaipiersi ornaments ) life has only one goal , and that is to revenge the killing of his wife 's murderer . Some time ago , a time when newly married couple 's Shelby was a scoundrel 's attack , the perpetrators of the brutal murder of the wife of Leonardo , Leonardo also received heavy losses , with his strong will to struggle from the dead line back , but because of the serious injury of the brain and had a strange short-term memory loss syndrome , since he can only remember what happened in the few minutes ago but fragmented memory has forced Leon Nadeau difficult , he can only rely on the fragmented small things such as tattoos , Polaroid snapshots to recall the bits and pieces of the past , and , whenever he found some valuable clues , you must use all means at once record down as possible after ten minutes , he can not remember their own in any place , or done something good friend the Ni Tanli ornaments ( Kerry - Anne Moss ) help in investigating the murder truth difficult to carry out , those memories will continue to show Leonardo directed to where ? The bewildering case brought him into confusion