Yumi has been receiving frequent silent phone calls, leaving her feeling uneasy. Her husband Takashi, concerned for her well-being, senses that something is off. One day, Yumi heads to the bedroom to fold laundry and put it away in the closet, where she encounters a suspicious man who appears to be inspecting her underwear. Ignoring her growing anxiety, she fails to grasp the man's true intentions, plunging her into an increasingly distressing situation.