Why is it raining when the sun shines?(a story about contrived elements)

Rating: 7/10 (8 November 2006)

Introduction Eleven years after it's release I finally got around to seeing se7en. The movie started of well. The characters are believable, the story is intriguing and thought provoking. But then I wonder.
Why is the FBI able to find that one killer amidst all the thousands upon thousands who borrow books in the library, even if the selection of books is rather exotic? Why does the killer not buy the books? He has money enough to spare and the books are easy to buy in any store? And thus he is better to erase his steps. And why does the killer name himself John Doe, which is an obvious fake name, but then is silly enough to also register his real address with the library with the obvious result that the police will find him?
The library records are actually a key element in the story. The police is able to track down the killer because the FBI is able to find the address of the killer in the library register. Indeed there isn't even a list: they get the address and go straight to the killers house.
There is more of this in the movie, but nothing is more far fetched than the end. The entire ending rest on the assumption that Mills does not once check upon his wife. During the many hours in which the process of justice grinds, not once does Mills call his wife. Maybe to say hello or to tell her he might be late. And thus at the end the delivery man at exact seven o'clock delivers the gruesome box in the middle of nowhere that causes Mills to shoot the killers and thus making it seven kills in all. There is no way the killer could have known the box had to be there at seven o'clock as he had no control over Mills being there. It is to much of a coincidence.
My conclusion It's a nice movie and might have been a good film if the story elements had been stronger. The movie is too much based on coincidences and contrived elements and this is a pity.