Nam Joo-hyuk is returning to screens after a three-year hiatus to star in Netflix’s supernatural period drama “The East Palace.” The role required several action sequences, giving the actor a chance to show his development and testing whether he can regain momentum. “The East Palace” follows Gu-cheon, played by Nam, a man who can cross between the human world and the spirit world. Roh Yoon-seo plays Saeng-gang, a court lady with a secret. The king, played by Cho Seung-woo, summons the pair to investigate a haunting in the palace. Choi Jung-kyu, whose credits include “The Devil Judge” and “Children of Nobody,” directs the series. The production blends occult, horror, fantasy and action amid surging global interest in stories featuring Korean folk elements. Korean productions with supernatural angles have increasingly reached international audiences through streaming platforms. Netflix’s “If Wishes Could Kill,” released earlier this year, drew a large global audience. "The East Palace” follows suit, setting its story in a haunted palace and saturating the product