After moving to the town of Dark Falls and finding their new--old--house very creepy, Amanda and Josh's parents encourage them to make new friends, which proves to be a hauntingly dangerous mistake.
Max is thrilled when he discovers a mirror in his attic that can make him invisible, but his fun turns to fright when his disappearances begin to last longer than he wants.
Billy learns a very dangerous lesson when he ignores his uncle Dr. Deep's warning to stay away from the coral reefs while diving and encounters a horrifying half-human, half-fish creature lurking deep below the surface.