Killer Mermaid (2014)

On a sun-drenched Mediterranean escape, two adventurous young American women stumble upon a chilling secret. Beneath the ruins of a forsaken military fortress, they discover the submerged domain of a deadly mermaid. As they delve deeper into the mystery, the serene beauty of their holiday turns into a nightmarish struggle for survival. The waters, once inviting, now conceal a menacing predator intent on protecting its territory at any cost. Their dream vacation transforms into a gripping tale of suspense and courage.