Jaws

During a beach party at dusk on Amity Island, a young woman, Chrissie Watkins, goes skinny dipping in the ocean. While treading water, she is violently pulled under. The next day, her partial remains are found on shore. The medical examiner's ruling that the death was due to a shark attack leads police chief Martin Brody to close the beaches. Mayor Larry Vaughn overrules him, fearing that the town's summer economy will be ruined. The coroner now concurs with the mayor's theory that Watkins was killed in a boating accident. Brody reluctantly accepts their conclusion until another fatal shark attack occurs shortly thereafter. A bounty is placed on the shark, prompting an amateur shark-hunting frenzy. Local professional shark hunter Quint offers his services for $10,000. Meanwhile, consulting oceanographer Matt Hooper examines Watkins's remains, and confirms her death was caused by a shark—an unusually large one.