I don't buy the plot

Rating: 4/10 (20 September 2017)

I just don't buy the things that is happening in the movie. What I mean is that he gets hit in the head and get amnesia, only remembering some things, things so he think he is the character that he is acting. This seems to convenient to me. How can he remember just that. The thing also about that is it seems that they had not played their rolls for that long of a time. All the memories he has to begin with has nothing to do with his "roll". That begs the question, what do he remember? He cant remember himself teaching or having any moment at home with his wife because he has never done that in his roll. For that matter the other members of his crew act very strange during all this. They don't contact him or try to explain to him the situation in any way. They even almost hit him with their cat at one moment. They even try to kill him. Then their leader says that he his the person he plays likes that is things that happens. How? He has never really played his roll. Its lucky that they had a reserve for his roll, and that his how I know he never really has played his roll, because no one knows how he looks like.
Then we can look at this organizations plan to begin with. They want a scientists research and then kill him so they will be the only ones with it, so they can sell it I think. Why do they need to kill him? He most likely has his research in other locations. If not he is stupid. Anyway it seems important that no one knows that he was the target and his research was stolen. This complex plan comes down to that They know that the scientist never would leave his research and always carries his computer with him. They will then convince him to leave it in the wardrobe. Then they will use some kind of USP WiFi on his computer to steal the research. This part of the plan I think is ridicules and is based on a lot of assumptions which might not work. It is just luck that they succeed with that part and that seems so random when the rest of the very complicated plan(which to me seems you could solve much easier) is so though out.