Innocent Witness (Korean: 증인; Hanja: 證人; RR: Jeungin) is a 2019 South Korean legal drama film directed by Lee Han, starring Jung Woo-sung and Kim Hyang-gi.

Mi-ran claimed that she found her employer dead in his own room.

The only witness in this case is an autistic high school student named Ji-woo.

To convince Ji-woo to attend the trial as a witness, Soon-ho decides to meet her, and befriends her in order to prove her testimony was false.

Principal photography began on July 7, 2018, and wrapped on October 10, 2018.