"The Key" is a 2016 film directed by Jae-hoon Lee. The story revolves around a young woman who discovers a mysterious key that unlocks a series of secrets about her family's past. As she delves deeper, she uncovers hidden truths that challenge her understanding of her identity and relationships. The film combines elements of drama and mystery, exploring themes of memory, loss, and the impact of the past on the present. With a compelling narrative and strong performances, "The Key" invites viewers to reflect on the significance of personal history and the choices that shape our lives.