Kun tuntematon soittaa...

Young babysitter Jill (Carol Kane) is tormented by a series of disturbing phone calls until a cop (Charles Durning) is put on the case to apprehend the caller, who turns out to be a psychotic killer. Seven years later, after the killer is released, he returns to haunt Jill, now a wife and mother. But having learned her lesson as a girl, she's now prepared to deal with him. (jakelijan virallinen teksti)