Oh Yoo Bang sneaks into a villa at night and discovers the dead body of Jin Ho Hae, Chunha Medical Group executive. His niece Baek Yeo Chi is hiding in the room behind a curtain. At the funeral, both Yoo Bang and Yeo Chi are arrested for murdering Hoe Hae. How did things come to this? It all began three months ago when Chunha began trial testing for their newly developed medicine.
Rival company director Choi Hang Woo also goes undercover to gather information about the new drug. He signs up to be a ‘lab rat’ for the drug testing.
Spoiled, rich and selfish, Yeo Chi undergoes a training in Business Administration because her grandfather wants her to inherit Chunha one day as he doesn’t think Ho Hae is capable enough to do so, though she herself is completely uninterested.
Yoo Bang on the other hand, has been working part-time jobs to support himself after graduating from college. He meets Ho Hae by chance after he visits the salon Yoo Bang is working at. Yoo Bang agrees to let the drug be tested on him in exchange for a job recommendation by Ho Hae.
As the drug kicks in, strange things happen. Who actually killed Ho Hae and why?
Oh Yoo Bang (Lee Bum Soo)
Baek Yeo Chi (Jung Ryeo Won)
Choi Hang Woo (Jung Gyu Woon)
Cha Woo Hee (Hong Soo Hyun)