The Devil You Know

Those who believe in humans, those who don't And those who use humans Star instructor Yoo-jeong, who believes in the goodness of humans, meets Seon-hee, a sociable businesswoman who expresses interest in her. Yoo-jeong tries to distance herself from Seon-hee in order to protect her family, but that night, an unexpected incident occurs, and Seon-hee's attitude completely changes. At that moment when everything changes abruptly, Yoo-jeong is unknowingly dragged into a deep trap. Kang-soo, who is a close friend of Yoo-jeong and does not easily trust humans, senses the ominous atmosphere between the two and keeps a close eye on them. In particular, the ominous feeling that Seon-hee gives off makes her have an increasingly ominous premonition.