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.
A police officer adopts the son and sole survivor of a family he has massacred while pursuing a terrorist. After some time the foster son finds out what the stepfather did.
At a prestigious all-male university, three friends seek love outside of the school grounds; at the same time, a newly-hired music teacher seeks to befriend and loosen up the militantly strict headmaster.
After a teenager has a terrifying vision of him and his friends dying in a plane crash, he prevents the accident only to have Death hunt them down, one by one.