So-Hee (Lee Jung-Hyun) is married to Man-Gil (Kim Sung-Oh).
She is in the midst of enjoying her life as a newlywed, but something is off with her husband.
He is always busy and doesn’t seem to rest. So-Hee thinks he doesn’t act like a human at times.
She hires someone to follow her husband and she learns that her husband is incredibly dangerous, with all of his past wives being found dead.
So-Hee decides to fight against her husband with the help of Se-Ra (Seo Young-Hee), Yang-Sun (Lee Mi-Do) and Doctor Jang (Yang Dong-Geun).
Doctor Jang is a director of mystery research institute. It turns out that Man-Gil is ….