Coherence

Three couples - Emily and Kevin, Hugh and Beth, Amir and Laurie - attend a dinner party at the house of their friends Mike and Lee. The dinner party goes fairly well until the power goes out following a comet sighting. They discover that a house down the road still has power and a few of them decide to investigate, only to find that it is Mikes house. Several strange and bizarre occurrences follow, leading them to the conclusion that they';re intersecting a parallel universe with a parallel dinner party.