After Madeline said this, Carter showed a never-before-seen look of surprise in his eyes.
He had thought it was the best threat to use on her because she was previously in prison where she suffered inhumane treatment and suffering, so she was deeply traumatized. It was impossible that she would still want to go back to such a place.
However, he never expected that Madeline would say that she was guilty of bigamy so confidently and magnanimously.
Although, he had been the one who designed this