Series Train — 1 season, 8 episode

Sung Wook falls off of a building right before Do Won and Seo Kyung’s eyes. As they continue to investigate Sung Wook’s past, they find themselves at yet another dead end. Meanwhile, the two Do Wons end up meeting face to face. As they both continue searching for the real culprit, Do Won’s father tries hypnosis to try to bring back his memories.