"Aswang sa Siquijor 1" is a Tagalog horror animation based on a true story set in the mysterious island of Siquijor, known for its supernatural lore. The story follows Tito, a young man who travels to the island to visit relatives. While Siquijor is famous for its natural beauty, it is also feared for its connection to dark magic and aswang sightings. Soon after Tito arrives, strange occurrences begin—unexplained noises, animals disappearing, and locals warning him to be careful after dark.

One evening, Tito notices a shadowy figure lurking near his relatives' home and suspects it might be an aswang. After a series of eerie encounters, the family consults with a local healer who confirms their fears—an aswang is stalking them, drawn to the island’s mystical energy. The healer provides them with protective charms and guides them in performing rituals to ward off the creature. Tito soon finds himself in a terrifying battle with the aswang, learning that the island holds many dark secrets.

"Aswang sa Siquijor 1" combines the natural beauty of Siquijor with its haunted reputation, blending Filipino folklore with real-life horror. The story explores themes of fear, survival, and the deep-rooted supernatural beliefs tied to the island, creating a gripping tale of suspense and mystery.