A detective investigating a man's death in the mountains ends up meeting and developing feelings for the dead man's mysterious wife in the course of his dogged sleuthing.
From a mountain peak in South Korea, a man plummets to his death. Did he jump, or was he pushed? When detective Hae-joon arrives on the scene, he begins to suspect the dead man's wife Seo-rae. But as he digs deeper into the investigation, he finds himself trapped in a web of deception and desire.