This is the story of a tragic love that spans 12 years.

As children, Yoon Na Moo and Gil Nak Won were each other's first love. But their world shatters when Na Moo’s father, Yoon Hee Jae—a cold-blooded serial killer—murders Nak Won’s parents, tearing them apart.

Nine years later, Na Moo has taken on a new identity as Chae Do Jin, a kind-hearted rookie detective determined to atone for his father's crimes. Nak Won, now known as Han Jae Yi, is an aspiring actress following in her mother’s footsteps, struggling with panic disorder but holding onto hope.

Their paths cross again, but the weight of their shared past pulls them apart once more.

Three years later, Jae Yi is a rising star, and Do Jin a seasoned detective. As fate reconnects them, they must face their pain and ask: is their love strong enough to overcome the scars of the past?