How cliché to be utterly and completely in love with your best friend.

When her best friend gifted a ring on her birthday. She posted an Instagram story of her hand picture while wearing it on ring finger. . Her childhood enemy got misunderstood and came straight from Paris to Seoul frustrated without any thoughts after seeing her story.

They divorced each other after three years of marriage and got mutual child custody. After one year, she eventually made friendship with a restaurant chef not knowing... He's the serial killer,her ex-husband who is a homicide detective is searching.