Lee Dong Jin - S1.E8

Aware of the dire consequences of getting too close for too long, Dong-jin plunges into the river in a desperate attempt to save himself. However, Mi-jung recognises him, intensifying the danger he's already in. As he recovers in the hospital, Dong-jin turns to Producer Heo, seeking her help to identify a key variable in his hypothesis that might hold the solution he is desperately searching for.