Jo Jeong-nan is a beautiful and successful career woman working at a major corporation.

But behind her polished appearance lies a dark past she has never revealed.

Desperate to escape that past, Jeong-nan has taken dangerous risks to build a new life.

Then, one day, a new employee joins her team.

Her name is Yi Jin-a.

Jin-a's arrival brings back memories Jeong-nan has struggled to bury.

Every encounter with Jin-a reminds her of the darkness she desperately wants to leave behind.

Jeong-nan makes a decision.

She will drive Jin-a out of the company.

She begins making unreasonable demands and finding excuses to force Jin-a to leave.

To protect the life she has built, Jeong-nan is determined to remove the woman who reminds her of her past.

But can she ever truly escape it?