Memento Mori is the free short storythat inspired Nolan’s brother, Christopher Nolan (Inception, Interstellar) to make mind-bending film Memento starring Guy Pearce.
Earl is a permanent patient at a hospital since he was injured in the attack which saw Earl’s wife raped and killed. His injury has caused permanent brain damage meaning he’s unable to convert short-term into long-term memories. Earl remembers everything before the damage, but nothing after, so his memory is only ten minutes long.