Monster from the Ocean Floor (1954)

Plot

On vacation in Mexico, Julie encounters a colossal, one-eyed amoeba emerging from the sea. Her attempts to alert the local authorities are met with skepticism, leaving her frustrated and determined. Seeking help, she joins forces with a marine biologist who shares her concerns. Together, they embark on a perilous mission to confront and eliminate the monstrous creature threatening the coastline. As they delve deeper into the mystery, they must race against time to prove the danger is real before it wreaks havoc on unsuspecting beachgoers.