A couple university students go camping in the mountains. When they return to Tokyo they find it empty. Lost in Shibuya their relationships start to collapse.
At Kichijōji Station, Tokyo, Taku Morisaki glimpses a familiar woman on the platform opposite boarding a train. Later, her photo falls from a shelf as he exits his apartment before flying to Kōchi Prefecture. Picking it up, he looks at it briefly before leaving. As the aeroplane takes off, he narrates the events that brought her into his life...
In the immense city of Tokyo, the darkness of the afterlife lures some of its inhabitants desperately trying to escape the sadness and isolation of the modern world.
Natalie allows her classmate Jeff, who has run away from home, to stay at her place while her father is away on a business trip. Natalie soon starts dating Jeff's friend James Casey, who isn't as faithful as she thinks, while her best friend Polly falls in love with baseball player Zoo Knudsen.