Choi Ryung

Florist Ae-ran and forensics investigator Min-ho from the Public Prosecutor's Office both have a family that everyone wants. However, Min-ho can't handle bed time so Ae-ran starts a 'challenge game' in which she seduces and has sex with strange men. One day, Ae-ran and Min-ho meet Alex at a tango cafe. Alex is interested in Ae-ran and approaches her while Ae-ran takes interest in Alex who is more handsome than her husband. Min-ho later witnesses them in action and gets angry when he finds out the man Ae-ran seduced is Alex. Min-ho feels nervous because he finds out Alex isn't just a game partner and approached him for a reason. Min-ho tries to get rid of Alex but Alex chokes Ae-ran and Min-ho even more and feels catharsis. The game they started is turning into a catastrophe...

When Aryong, the daughter of a triad boss from Hong Kong is accused of killing the boss of a competing triad, she goes into hiding in Korea. Upon arriving, she is guided by a nimble but loyal Gi-chul and his motley crew, who are assigned to protect her until her return.

Jeong In is found dead, grasping a note forewarning her death. In the past, she and Min Tae Chang conspired and killed Baek Seol Ah's father and stole his fortune. After using the money she stole to become the CEO of a production company she found, she meets and falls for Seo Jin Ho, an aspiring actor who looks just like her first love. Jeong In transforms him into Jung Woo Jin, a top star. However, she learns that his former love is Baek Seol Ah and that Park Jin Kyung, the unrevealed writer of "Poker Face," is the same person as Baek Seol Ah. Baek Seol Ah vows to get revenge after learning that her ex-boyfriend, Seo Jin Ho, is involved with Jeong In, who had murdered her father. She resolves to write a drama to complete her revenge. Could Baek Seol Ah be Moon Jeong In's murderer? The culprit was someone in the banquet hall, but everyone wished for Jeong In's death. Who was it, and for what reason did they kill her?

A neurosurgeon with anger management issues becomes the perfect test subject and love interest for an endocrinologist obsessed with the study of hormones.