Knock Knock, Who's There?
- ปี: 1988
- ประเทศ: Philippines
- ประเภท: สยองขวัญ, ตลก
- สตูดิโอ: Golden Lions Films
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- ผู้อำนวยการ: Carlo J. Caparas
- นักแสดง: Joey de Leon, Lyka Ugarte, Janice Jurado, Cheenee de Leon, Richard Gutierrez, Raymond Gutierrez
