Ahn Byeong-ki (born November 5, 1966) is a South Korean film director, producer, and screenwriter specializing in horror films. His representative horror works are Phone and Bunshinsaba while his non-horror produced movies involve Scandal Makers and Sunny. Byeong-ki Ahn is known for Phone (2002), Nightmare (2000) and Apt (2006). Byeong-ki Ahn is known for Phone (2002), Nightmare (2000) and Apt (2006).