Sinister

In the movie Sinister, a true crime writer--played by Ethan Hawke--is writing a book on a series of family slayings when he comes across a series of super 8 films that show the murders.

In each of the films showing the slayings, the families are all bound and gagged at first, before they are killed. These show a family that had been enjoying their swimming pool before they were captured and tied to deck chairs. The victims are all barefoot and clad in just bathing suits.

The deck chairs they are tied to are weighted down, and they are each pulled into the pool to drown. At one point, the demonic entity behind this can be seen standing under the water.

The true crime writer's own family soon becomes a target of this other worldly killer, as this shot of his wife seems to foreshadow.

By the end of the film, his family have been abducted from their beds and tied up for their own ritualistic murders. It leads to a very nice BF bondage scene right here.

Probably the most horrific moment is the lawnmower scene. Trust me, it's exactly what you think it is. It's hard to tell, thanks to the dimness, but I believe she was barefoot, here. Interesting choice in how she's tied up, as well.

Sinister is a perfect movie to watch during this Halloween season. As a bonus, it has some very good BF bondage scenes, as well.