he Master's Sun is a 2013 South Korean horror-romantic comedy written by the Hong Sisters, and aired on SBS from August 7 to October 3, 2013 on Wednesdays and Thursdays at 21:55 for 17 episodes.

Joo Joong Won is a cold and ambitious CEO, who measures all human relationships through money. Tae Gong Shil is a sensitive assistant, who suffers from insomnia, due to her ability to see ghosts after an accident. Joong Won and Gong Sil are an unlikely duo in every regard, but they share one thing in common: they are both intensely crippled personalities that need a lot of help. Can the money hungry Joong Won recognize priorities beyond the dollar sign, and can the lonely Gong Sil ever live a life without fear? Together, strange as it may be, it’s possible in this unique dance between yin and yang.

Overview from themoviedb.org