this is one of those movies that shouldn't have been funny but is hilarious

This is a terribly unfunny venture, which fails at the film’s only job.

Writer-director Dean Craig gathers a winning ensemble for his dark comedy and, intermittently, the characters’ rank awfulness is a joy to behold. But despite boasting a fair amount of snide one-liners and a general air of gleeful misanthropy, the film ends up becoming strained and predictable, not quite liberating or shocking enough.

It takes truly terrible script to make such charming and accomplished comedic actors seems so wooden and lifeless.