I Saw What You Did

In a quiet suburban setting, two teenagers indulge in the seemingly harmless act of making prank phone calls to unsuspecting strangers. Their game takes a dark turn when they unknowingly contact Steve Marek (John Ireland), a disturbed man who has just committed a horrific act by murdering his wife (Joyce Meadows). Their chilling whisper over the phone, "I Saw What You Did, And I Know Who You Are," marks them as targets of his terror. Meanwhile, another figure, Amy Nelson (Joan Crawford), the killer's obsessively infatuated neighbor, holds knowledge of the gruesome crime that unfolded that night, adding a layer of tension to the unfolding events.