Highway Hunter

The narrative follows a family traveling on a highway. They come across a worn-out station wagon with a girl gazing mournfully from the window. Later, they coincidentally encounter the same individuals at a restaurant and check into the same motel. During a swim at the hotel pool, Seth notices a link between the despondent girl in the station wagon and a boy named Billy, who is swimming with Seth and his sister Holly. The following morning, the police arrive at the motel to inquire about a missing girl.