"Maybe" is a love story/road movie about a man who suffers from a rare heart disease and a woman who's searching for her past using the scar on her shoulder. May (Sung Yu Ri) is a Korean-American adoptee who returns to South Korea after 23 years. She carries a scar on her shoulder 13 cm long that looks like a lizard. More than anything she wants to find her identity. Eun Seol (Jang Hyuk) is a taxi cab driver suffering from a rare heart disease. He waits for his death at any moment.