The movie starts with a loner named Ben Narendran writing a suicide note. He mentions that he is committing suicide as he has nothing to do with his life. He ends up saving another young man who has the same intention. Janardanan has committed a murder out of desperation and is scared of revenge. Narendran consoles him and offers him to take the blame of the murder so that Janardanan can live freely. Narendran gets sentenced to lifetime imprisonment. While in jail, he writes a book under the pen name "Ben" which becomes immensely popular. Once out of jail, Narendran gets word that Janardanan has died mysteriously. He sets out on a mission to find the culprits and destroy those who caused his death.
Three stories happening in New York. The first, by Scorsese, is about a painter who creates his works helped by high volume music and an attractive assistant; second, by Coppola, is about a rich and bold 12 years old who helps her separated parents to reconciliate; third, by Allen, is a witty piece of comedy about the impossibility of getting rid of the son's role.
Five years after they defeated Zuul, the Ghostbusters are out of business. When Dana begins to have ghost problems again, the boys come out of retirement to aid her and hopefully save New York City from a new paranormal threat.