Alexander Fleming receives a letter from an anonymous person claiming they saw the Loch Ness Monster. He goes to investigate and meets Adam, the letter writer, who shows him a photo and the location where he saw the monster. While investigating the lake with Adam, Alexander hears a strange sound and is suddenly attacked and pulled in by the Loch Ness Monster. Adam calls for help but the police do not believe his story and arrest him. Unable to cope with the loss of her husband, Alexander's wife commits suicide.