날 사랑하도록 설계된 단 한 사람, DNA러버.소진은 DNA러버라 믿었던 남자친구 상민에게 차이고 좌절한다.집안, 외모, 성격 모두 갖춘 우월한 ‘유전자’ 산부인과 의사 연우.어느 날, 술에 취한 소진은 연우의 집에 쳐들어가게 되고, 연우와의 운명 같은 만남이 시작되는데...
So-jin, a DNA researcher, gets dumped by his boyfriend, Sang-min. Heartbroken, she drinks too much and breaks into a stranger’s house. Yeon-woo, a successful gynaecologist, breaks up with his girlfriend as he gets sick of her. Kang-hoon, a hardworking firefighter, finds a pregnant woman unconscious. Meanwhile, So-jin witnesses Sang-min walking down the street with a woman she knows.
