A man falls from a mountain peak to his death. The detective in charge, Hae-joon (PARK Hae-il), comes to meet the dead man's wife Seo-rae (TANG Wei). "I worry when he does not come back from a mountain, thinking he might die at last." Seo-rae does not show any signs of agitation at her husband's death. With her behavior so unlike that of a grieving relative, the police consider her a suspect.
