Go Eun-ho, a doctor from Seoul, goes to Biyang Island to meet his father's mentor. There, he meets Seo Jung-eun, a silent, elusive beauty who has suffered a trauma so great that she's lost the will to speak. Fascinated and empathetic, Eun-ho helps Jung-eun find a way to overcome her past. But just when her gratitude starts to blossom into love, fate cruelly intervenes, leaving Eun-ho in a coma, caused by a car accident when driving with his long-lost mother, who died at the scene. At the hospital, Jung-eun meets Eun-ho's stepbrother Eun-sup, who is also a doctor. Despite his best intentions, Eun-sup finds himself powerless to resist Jung-eun, and he falls for her as Eun-ho lies comatose. Later, Eun-ho does regain consciousness, but his state of mind is stuck in childhood. Little by little, he begins to regain his memory. One day as he intercepts a car, he starts to recall the past and understand that his unacknowledged pain and fear of cars resulted from his mother's death. Jung-eun, fed up with hiding the truth, tells him the shocking news that his mother died in a car accident. Latent rivalries and misunderstandings come to a boil as the two brothers fight for Jung-eun's affection, with other opposing characters making matters worse. A bar girl and Kim Min-jung both despise Jung-eun for stealing the hearts of Eun-sup and Eun-ho, respectively. Eun-sup's mother also shows disdain for Jung-eun, since she sees Jung-eun's grandfather, her husband's mentor, as a threat to her marriage. Spiteful that Eun-ho desires to marry Jung-eun, Eun-sup's mother contemplates a plan using Min-jung to poison their relationship. Min-jung visits Jung-eun, deceitfully telling her that she is hindering Eun-ho from a successful career by furthering his studies at the prestigious Johns Hopkins School of Medicine, which his family wants for him. Believing this, Jung-eun breaks off her engagement to Eun-ho, and leaves him. Eun-sup one day sees the phony medical school pamphlet that Min-jung presented to Jung-eun, and tells Eun-ho about it. Min-jung admits her scheme to Eun-ho, saying it was done out of her love for him. Eun-ho confronts Jung-eun and tells her about the misunderstanding, but Jung-eun refuses to reconcile. She then confesses that her heart loves Eun-sup, not him. After Eun-sup learns that Jung-eun loves him back, they spend more time together before she goes back to Biyang Island. In the end, Eun-ho decides to forget his feelings for Jung-eun and forces himself to like Min-jung. The two brothers are reconciled. Eun-sup leaves Seoul to become a doctor at the Biyang Health Center, while living with Jung-eun on the island. The ending scene recalls the drama's opening scene as Jung-eun runs to the ferry to reunite with her love, who is now Eun-sup.
