AllMovie

In The Shasta Triangle, Paula, a woman in her 30’s, returns to her hometown of Shasta, California to uncover the truth about her father’s disappearance when she was a child. Her parents were fringe scientists using ancient geometry to figure out what was causing a mysterious horn-like sound happening all over the world. First her mother died suddenly, and then her father disappeared when she was young, and Paula has come back to Shasta to get closure on what happened.