Doctor Stranger (Hangul: 닥터 이방인; RR: Dakteo Yibangin) is a 2014 South Korean television series starring Lee Jong-suk, Park Hae-jin, Jin Se-yeon and Kang So-ra. It aired on SBS from May 5 to July 8, 2014 on Mondays and Tuesdays at 21:55 for 20 episodes
As a child, Park Hoon (Lee Jong-suk) and his father Park Cheol (Kim Sang-joong) were tricked and sent to North Korea. After being sent to North Korea, Park Hoon and his father were denied access to go back to South Korea. In North Korea, Park Hoon was trained to become a doctor by his father who was already a famous doctor. Park Hoon became a genius thoracic surgeon after attending medical school in North Korea. He fell deeply in love with Song Jae-hee (Jin Se-yeon) during his high school career. After Park Hoon’s father died he tried to flee to South Korea with Jae-hee, but lost contact with her in the end. Jae-Hee ended up in the North Korean camps for attempting to escape as Park Hoon was able to fled to South Korea alone, while looking for Jae-hee.
In South Korea, Park Hoon begins to work as doctor in a top hospital Myungwoo University Hospital. Meanwhile, he found a girl that looks exactly like Jae-hee, Doctor Han Seung-hee, who claimed to not know Park Hoon.