Mike and Lee are having friends over for dinner tonight. It's also the night Miller's comet will pass near the Earth. Smartphones crack, the Internet goes out, and then all power is lost. Mike has a generator which restores the lights. The landscape outside is dark except for one house in the distance with the lights on. Despite having been warned by a physicist friend to stay inside during the comet event, two of the party take glow sticks and attempt to visit the other house.
Then it really starts getting weird. This is one of those movies you have to watch over again to notice the clues you missed the first time. Don't look for car chases, fiery explosions, or gunfights. Coherence (2013) is more of a thought-provoking suspense puzzle.