This story is told from end to beginning as seems to be appropriate for a protagonist suffering anterograde amnesia. Leonard lost his ability to form new long term memories when he was hit on the head by the man responsible for the death of his wife. He is now on a quest to find and kill that man. But it's a bit difficult to conduct an investigation when you can barely maintain short term memory long enough to hold an intelligent conversation. But, Leonard has some neat tricks to help him overcome this limitation.
The writers seem to have needed a bit of help with their neuropsych terminology. While that won't bother most people, I found it annoying. It IS amnesia, anterograde. It is NOT instinct, it is a different area of learning and memory; instinct is inborn. Hire a qualified consultant to help you with the facts.
Nevertheless, I enjoyed this movie. It's a great story, told well. And, though the ending isn't exactly a surprise for those paying attention, it is not what you might expect at the beginning.
Memento. A good view.
I spend more time than I like to admit on NetFlix and other services. When I can't sleep or am too exhausted to even think, I pop on the TV. As do most people, I have some definite opinions about entertainment offerings on cable, NetFlix, VuDu, and in theatres. If you're interested, read on....