For the critters living in a Manhattan apartment building, the answer is: whatever they want! A terrier named Max (Louis C.K.) regularly invites his friends to hang out at his place while his owner Katie (Ellie Kemper) is gone, but his quiet life is upended when said owner also takes in Duke (Eric Stonestreet), a stray mutt whom Max instantly dislikes. Their feud eventually causes both of them to get lost in New York City,...