Far-fetched, illogical plot and poor character development

Rating: 2/10 (3 April 2015)

Whether you like this (or any other) movie depends on what you're looking for. If you, like me, demand a sensible plot, a consistent evil threat and you require characters to behave in a passably realistic way, you are going to puke over this pitiful abortion. If, on the other side, you concentrate on cheap scares, occasional eerie moments and you don't mind heavily repeated clichés, you might find 'Sinister' of your liking.
It's basically a matter whether you're going for thoughts or for flashes. As other reviewers remarked, the plot is full of holes. The son's night scares are not connected in any way to the main story. Ethan Hawke gropes his way in a house full of mysterious whispers without feeling the need to switch any light on. He makes awful noises without any family member waking up and coming to investigate. The evil menace is as exotic and far-flung as imaginable. Neither the policeman or the researcher helping Ethan really fit in the story -- they are just momentary addictions with no consistency of their own. And so on and so on.