Amnesia

One has lost his wife and never got over it and never could realise what really happened, but she is gone, that is all we and he knows about it, since no body was ever found, alive or dead, and the other one suffers from permanent amnesia since five years, or so it seems. There is something very fishy about both cases. The first one (John Hannah) in the line of duty as a police officer suspects the other one of being a murderer who killed his wife and stepson and keeps harassing him and his wife, claiming he is another person or has been another person. In the last five minutes all the mysteries seem to get their explanation which however leaves you with a load of question marks with no possible answers, since the rest is missing. You are left hanging on a cliff with nothing but your own speculations to help you out into further possibilities of tunnels in the labyrinth to nowhere...