After my legs were shattered, I disappeared completely

When her undercover identity is exposed, a woman is run down by a car that crushes both her legs, and three shots are fired at her son, Jasper. Her husband, Xander, a police officer, kills the attacker and tells her the boy suffered severe brain damage and will never wake. A year later she sees Xander kissing Anais, the attacker's daughter, and learns the crash was planned so Jasper's heart could be transplanted into Anais.

Confined to a wheelchair and drugged to keep her from standing, she discovers her legs healed long ago and her son's coma was engineered. Xander insists Jasper agreed to donate his heart, while Anais takes the boy's heart for herself.

Before her parents died, their final wish was that she keep supporting a girl with a special identity, and she resolves to send them all to hell together.