Octopus 2: River of Fear

Above and below the water there is no escape

A creature-feature thriller about a giant octopus terrorizing New York harbor, built on escalating tension and the protagonist's struggle to convince authorities of an implausible threat.

Dead bodies are being found in New York harbor. The police have no clues nor suspects until Nick and his colleague realize the killer is a giant octopus. Everybody, especially the police captain, refuses to believe Nick's story, and soon the harbor will be filled with boats for the 4th of July celebrations.