Mika drives through the rain to pick up her daughter, Michiko, from day care. She tries to talk with Michiko on the way home, but as their conversation carries on, Mika remembers something horrifying.

Shirou is climbing a mountain when he gets caught in a severe blizzard and takes shelter in a nearby shack. The blizzard worsens, and Shirou braces himself to wait it out. But soon, disturbing sounds fill the shack, bringing terror he never expected.