Well, as soon as a group of uninvited guests arrive (the film's original title was «The Guests»), the house gets trashed and Tom must maintain some semblance of control if he is to keep his dignity and his job. (jackasscritics.com)
When a series of uninvited guests including a dying man (Ed Harris), his alcoholic wife (Michelle Pfeiffer), their dysfunctional sons (real - life siblings Domhnall and Brian Gleeson), and an unhinged publicist (Kristen Wiig) disrupt their paradise, things escalate to pure insanity. (donttalkaboutmovies.net)
, a delirious allegory that lets loose various subtexts and criticisms of the Bible (e.g., God as an inconsistently written character) to rewrite scripture as surreal psychological horror, with the human race as uninvited guests pissing and screwing where they don't belong and their creator as a husband who might be gaslighting his wife. (avclub.com)