Hye-Joong (Jung So-Min) can’t remember anything before the age of 4. Every night she experiences terrible nightmares. Unable to cope with the nightmares anymore, she heeds the advice of a shaman and goes back to the villa where her family stayed 24 years ago. The villa is now known as “Wonderland.” There, she meets Hwan (Hong Jong-Hyun), Soo-Ryun (Jung Yeon-Joo) and a white rabbit. During the next 15 days, Hye-Joong has to find something that is missing. If she succeeds her nightmares will stop.