A successful entrepreneur with a seemingly perfect life sees everything fall apart after discovering her husband covering up a murder allegedly committed by their daughter. As the family scrambles to hide the truth, an anonymous blackmailer claims to have recorded everything, pulling them into a dangerous web of lies, secrets, and betrayal.

Grieving the loss of a best friend she couldn't protect, an ex-bodyguard sets out to fulfill her dear friend's last wish: sweet revenge.

At the brink of going to hell, Yee-jae must cycle through twelve separate lives and twelve separate deaths in this reincarnation drama.