Kim Seung-Keun (Jung Jae-Young) stands on the ledge of an overpass bridge above the Han River. He's in way over his head in debt and he's ready to end his life right then and there. Mr. Kim then jumps off the bridge, but due to his own misfortune (or good fortune) he ends up washed ashore on a small nearby island. At first, Mr. Kim looks for every conceivable way to get off the island - which is in plain view of several nearby high rise buildings and apartment complexes. After a few days, Mr. Kim becomes acclimated to his solitary existence and he even starts to find comfort in his primitive surroundings. Meanwhile, a young reclusive lady named Kim Jung-Yeon (Jung Ryeo-Won) sits in her room, addicted to the online world of "Cyworld." She hasn't left her apartment in three years and she doesn't plan to leave anytime soon. In the evenings, when Jung-Yeon is finished updating her Cyworld home page, she dabbles in her other hobby which is photographing the moon. During one of those evenings, when Jung-Yeon is taking shots of the moon, she notices a "HELP" sign scrawled onto the sand of a nearby island. She then notices a strange man walking around the island and Jung-Yeon starts to view this man as her own personal alien.