Six college best friends throw their own private graduation party that goes terribly wrong when an uninvited guest arrives. Five years later, the girls gather once again and endure a night of far more horror and bloodshed.

Whilst his mother seeks treatment in rehab, teenager Nick (Wolff) comes to New York to stay with Cal (Epps), a Jazz musician friend of his late father's. During his stay he makes friends who show him what the city has to offer.