Based on Peter Benchley's best-selling novel inspired by the Jersey Shore shark attacks of 1916. The police chief of Amity Island, a summer resort town, tries to protect beachgoers from a great white shark by closing the beach, only to be overruled by the town council, which wants the beach to remain open to draw a profit from tourists. After several attacks, the police chief enlists the help of a marine biologist and a professional shark hunter. Roy Scheider stars as police chief Martin Brody, Richard Dreyfuss as marine biologist Matt Hooper, Robert Shaw as shark hunter Quint, Lorraine Gary as Brody's wife Ellen and Murray Hamilton as Mayor Vaughn.