he had to drink a mixture to forget all that stuff.
Also you will find a lot of different notes from you, to understand what is going on.
In few words – you are chased by the Dark side – The Shadow, because of one artifact.
Also your old friend Alexander is not the most honest one, s you have to escape from 2 enemies and solve a lot of problems.
But don’t forget, that this game is a Survival horor.