Seth Rogen, Zac Efron and Rose Byrne return to star as neighbours in this American comedy sequel directed by Nicholas Stoller. Mac (Rogen) and Kelly (Byrne) finally think peace has come to the neighbourhood now that Teddy (Efron)'s fraternity has cleared out. They're in for a nasty surprise however, when the Kappa Nu sorority, headed by the devious Shelby (Chloë Moretz), moves in next door and proves to be even more raucous than the fraternity before them. Mac and Kelly see no other choice than to invite their former nemesis Teddy back and ask for his help to get rid of the wild sisters.