The first time he had, before they had even gotten together, he had never felt the urge to kill anyone as deeply as it did at that moment and it wasn't because he hated seeing her in pain but because he wanted to be the only one who could hurt her. He wanted her entire body to respond to only him, her tears and her laughs. He wanted to see how much he would hurt if he actually did break her wrist. How long would his regret last before he broke something else? Would he still love her if he slashed a knife on her face? So he held her in his arms even though he had thought of pulling her hair from her scalp. Even though his cock was hurting. He tried to pretend to care about what she was going through, to mirror as effectively but it wasn't working. He knew he was being selfish. He knew this. And the worst part of it all had been when she had finally slept next to him, the thought of choking her with a pillow had been so loud that he had reached out for help. ∆ Callum Kingston is a sociopath who is worried that one day, he would give into his dark urges and kill his girlfriend, Autumn. She is the only person he feels genuine emotions for and makes him feel like a real empathetic human so he cannot lose her, and to do that, he seeks the help of a therapist that he believes would understand him better than anyone else. Amber Cavanaugh is a psychopath that became a therapist just so she could mentally destroy other people and the day she meets Callum Kingston, she's glad to find someone who might keep up with her until she hears he wishes to change who he is for his girlfriend. Not understanding why he loves her or why he would make such a decision, she decides to try studying him while also pushing him deeper into insanity to see if he would resist his predatory urges to hurt his girlfriend and lose control once and for all.