Dagon is a 2001 horror film directed by Stuart Gordon and written by Dennis Paoli. Despite the title, the plot is actually based on H. P. Lovecraft's novella The Shadow Over Innsmouth (1932) rather than on his earlier short story "Dagon" (1919).
Paul Marsh is a wealthy stock market Tycoon in bad need of a vacation so, at the suggestion of his girlfriend, Barbara, they set out for the shores of Italy to explore the country where's Paul's family came from with the hopes of Paul learning more about his mother's hometown (which she always refused to talk about) while relaxing and taking in the sea air with their middle-aged friends Viki and Howard. Things are going well for them, the seas have been fine and though Paul has been plagued with frightening dreams of swimming with a beautiful black-haired, green eyed mermaid, everyone is having a grand time. Then, suddenly, as they are passing the little fishing village of Imbocca, a storm blows up, dashing the boat against the rocks.
Vikki is trapped in the bottom of the boat in her bedroom, her leg broken and bleeding, trapped between the rocks and some of the splintered boat. Paul and Barbara take a life raft ashore to get help for Viki
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