In Invasion of the Mermaids (2025), the full teaser trailer sets the stage for a terrifying blend of supernatural horror and nautical terror. The film reimagines the myth of mermaids, turning the once-beautiful creatures of lore into sinister beings with a thirst for human blood. The trailer opens with breathtaking shots of a small, isolated coastal town, where life seems idyllic. Waves crash peacefully on the shore, and fishermen haul in their daily catch, but an eerie sense of dread lingers in the air.

The calm is quickly disrupted by strange occurrences at sea—fishing boats go missing, divers never return, and strange singing can be heard just beneath the surface of the water. The local authorities dismiss these incidents as natural, but a group of skeptical young marine biologists believe something far more sinister is afoot. Their curiosity leads them to explore deeper, where they discover ancient carvings and lore that hint at the existence of mermaids, but not the kind seen in fairy tales. These mermaids are ancient predators, luring humans to their watery graves with their hypnotic voices.

As the trailer progresses, we see haunting underwater shots of the mermaids in their true forms—beautiful but monstrous, with sharp teeth, glowing eyes, and long, clawed fingers. They move swiftly through the dark waters, hunting anyone who dares to enter their domain. The teaser also reveals several gruesome deaths, including one where a fisherman is dragged into the ocean, screaming, as a mermaid’s claws sink into his flesh.

The marine biologists race against time to stop the invasion, but the mermaids begin to venture closer to shore, attacking in packs and leaving the town in a state of chaos. Townspeople barricade themselves in their homes as the hauntingly beautiful songs of the mermaids grow louder each night, promising certain death to anyone who hears them.The teaser ends with a chilling close-up of a mermaid’s face, half-submerged in the water, her eyes glowing in the darkness as she whispers, “The land belongs to the sea now.”