When Beckett awakens to scorched skies and an eerie silence, he fears he may be the last person left alive after a mysterious global catastrophe. Isolated in a remote rental, his fragile grip on reality begins to unravel when he is confronted by the ghost of his abusive ex-husband, Joel. Forced to face the trauma of their past while an ancient, otherworldly force draws ever closer, Beckett must decide whether survival means escaping his demons or confronting them.