Figure skating champion Nora is murdered by a powerful organization, and her organs are harvested and divided among its members. Her mother, Grace, desperate and out of options, makes a pact with the mysterious entity Medusa, gaining supernatural abilities. Under a new identity, she approaches each perpetrator one by one to exact revenge: the actor Anthony, Police Chief William, tycoon Leo, restaurant magnate Oscar… Eventually, she uncovers that the true mastermind is the President’s Chief of Staff, Cathy—who turns out to be Nora’s biological mother. When the truth is laid bare, Cathy collapses and takes her own life. Having completed her vengeance, Grace walks into the sea carrying Nora’s heart, where her body dissolves into a skeleton and sinks beneath the waves.
