One of the most overrated Fincher's films

Rating: 3/10 (5 November 2014)

VERY MINOR SPOILERS BELOW
The first half of the film is pretty nice: it builds tension, mystery and manages to grab the viewer's attention. However the second half quickly undoes everything that's been shown earlier.
What's worse, the second part becomes incredibly implausible, very tedious, and lacking any interest because it ventures into so unlikely situations and reactions, you cannot help but wonder why people act like they act. For instance the police, who are very captious in the first half of the film, later believe everything they're told without doubting. Other people similarly and drastically change their mind and we are not given any reasonable explanation.
To give the film due credit, it's impeccably played, it has, like many other Fincher's films, its very likable palette.
Probably this film is about all sorts of psychos, at least its lead characters are. However the film doesn't give a chance to root for any of them due to their faults.