H is a 2002 South Korean thriller. It was written and directed by Lee Jong-hyuk, and stars Ji Jin-hee, Jo Seung-woo and Yeom Jeong-ah. The story follows a serial killer who preyed on pregnant women has been behind bars for 10 months when a copycat killer becomes active. Detectives meet with the imprisoned killer and search for clues in an effort to head off the copy cat killer before he finishes.