Undoing is a 2006 neo-noir drama film directed by Chris Chan Lee and starring Sung Kang, Tom Bower, Russell Wong, Kelly Hu, Jose Zuniga, Leonardo Nam and Bobby Lee. The film is set in the streets of Los Angeles' Koreatown and follows the story of Samuel Kim who returns after a mysterious one-year absence to find redemption from his past.

Plot

After a mysterious year-long absence, Samuel Kim (Sung Kang) returns to Los Angeles determined to find redemption from the past. His mentor and only friend, Don Osa (Tom Bower), is a retired gangster with a parallel desire to leave the former world behind. But as Sam tries to balance revenge with reconciliation, he is drawn back to the shadowy world he left behind.