Jong-soo has no other choice but to give up going to medical school due to financial difficulties. He leaves for a remote island without telling anyone his whereabouts. On the island, he meets a doctor who teaches him medical techniques, and begins to treat patients without a license. One day Jong-soo rescues Jung-won, a dying woman by mere chance and is mistaken for a talented doctor. But things get messed up as he continues to meet with Jung-won, as one misunderstanding spawns another. He ends up falling in love with her, and gradually finds himself addicted to love. To protect his feelings, Jong-soo keeps lying about his educational background and tries to escape from his past. But when he reaches the pinnacle of his "success," he realizes that everything he has done so far was in vain. His love turns into poison and ruins his life.