Leonard Shelby is tracking down the man who raped and murdered his wife. The difficulty of locating his wife's killer, however, is compounded by the fact that he suffers from a rare, untreatable form of short-term memory loss. Although he can recall details of life before his accident, Leonard cannot remember what happened fifteen minutes ago, where he's going, or why.

Christopher Nolan skillfully guides the audience through Memento's fractured narrative, seeping his film in existential dread.

'Memento' is acclaimed for its inventive narrative and exploration of memory and identity. Guy Pearce's compelling performance and Christopher Nolan's direction are highly praised. The film's technical elements, such as cinematography and editing, receive significant recognition. However, some find its complexity and non-linear structure demanding. Despite this, 'Memento' is often seen as a rewarding and thought-provoking experience that benefits from multiple viewings.