Phantom (Korean: 유령; Hanja: 幽靈; RR: Yuryeong) is a 2023 South Korean period spy action thriller film based on Mai Jia's 2007 novel, Feng Sheng.

[4] In 1933, during the Japanese colonization of Korea, the story begins with an underground anti-Japanese organization's failed attempt to assassinate the new Japanese resident-general on his first day in Seoul.

The Japanese colonial government gathers five suspects in a remote hotel on a seaside cliff to hunt down "phantom," a spy planted by an anti-Japanese organization in Gyeongseong, within a day.

Caught up in the game of life and under close scrutiny by the Japanese authorities, the suspects snoop around the rooms and search others' belongings to clear their suspicions.

[9] As of July 18, 2023[update], with gross of US$5,188,615 and 664,146 admissions, it is the sixth highest-grossing Korean film of 2023.