Da-hee works as a guide on an island that seems like paradise on earth. One day, she received a call from her friend Bo-eun saying she was coming to visit. Da-hee noticed that Bo-eun’s behavior was somewhat strange and creepy after entering the island. Meanwhile, two men visit the island, and Da-hee helps them as a tour guide. Both men develop a crush on Da-hee, while Bo-eun is watching the situation closely.