Idol () is a 2019 South Korean thriller film written and directed by Lee Su-jin, starring Han Suk-kyu, Sul Kyung-gu and Chun Woo-hee. It was theatrically released on March 20, 2019.
Goo Myung-hui, a provincial council member renowned for his integrity and strong moral principles, is receiving overwhelming public support and is considered a frontrunner for the next governor. One day, he learns that his son was involved in a car accident and attempted to cover it up. Determined to protect his political career above all else, he makes the difficult decision to turn his son in.
Meanwhile, Yoo Joong-sik, whose entire world revolves around his son, Boo-nam, would do anything for him. When his son, who has a physical disability, suddenly dies in a car accident and returns as a cold corpse, Joong-sik falls into despair. Unable to understand his son's actions on the day of the accident and desperate to find his missing daughter-in-law, Choi Ryeon-hwa, who vanished without a trace that night, he seeks help from the police. However, no one listens to him.
Determined to uncover the hidden truth behind his son's death, Joong-sik embarks on his own investigation. Meanwhile, Ryeon-hwa, the only person who knows what truly happened that night, harbors a secret that no one else knows and that no one should ever find out.
Principal photography began on October 24, 2017, and wrapped on April 9, 2018.