A group of friends that I'd never be friends with get together for a dinner party on a night when a comet passes close to the Earth's atmosphere. Alternate realities and Reality show-style bickering ensue.

I seem to be watching movies lately that contain characters that I dislike. It could be that I am getting old and grumpy and am having a hard time liking anybody or it could be that I'm sick of the overly character-driven story trend that now permeates TV and Movies. This story is about a comet that causes parallel realities. There are multiple versions of the same people coexisting within a confined area. The mystery is trying to figure out who is real and who has been duplicated by the comet. That's the story. Unfortunately, too much time is spent on the personal lives, the soap operas of the characters' screwed up personal lives. I wanted more about the science of what was happening not who slept with or cheated on who. I get that without characterization there's nothing to care about, but "Coherence" almost goes too far...almost.

Thankfully, the comet story line is grounded by "Em" (played by Emily Baldoni). She's the only character who keeps her head about her. In other words, she's the one character that keeps us focused on what the movie is about, which is the comet. I liked the ending and was intrigued by how Em evolves over the course of the story.

"Coherence" is not a Horror movie. It is gore free. It also uses something close to a shaky-cam technique, even though it's largely set-bound and occurs in one room. It doesn't look like much, but the story is a twisty good time.