On the night a rare comet passes over Los Angeles, Em is on her way to a dinner party when she discovers that her phone has not only lost power, but has literally cracked. At the party, the guests soon tell stories about how past interstellar near-misses have brought about strange occurrences, when the house is suddenly plunged into darkness. As unexplained events begin to stack up, Em begins to suspect that someone from their own house may be in league with an ominous and possibly dangerous house two dark blocks away. Relationship strain under the pressure. Secrets are revealed. Tensions push toward a breaking point and when the guests make an earth shattering discovery, their lives will change forever.