Im Rok, nicknamed 'Lucky Deer', has always had good luck. As is typical for him, he wins a contest and earns a trip with his friends. While on his trip, he meets Noah, a handsome and kind man, and he and his friends are invited to Noah's private island. As they arrive, they can't stop marveling at the luxurious island, the extravagant mansion, and Noah's hospitality. However, strange events begin happening, and one by one, Rok's friends disappear. To make matters worse, Im Rok stumbles upon a strange man locked up underground. What kind of fate will Im Rok face on this island?