Saskia and Jenny are twins who are alike only in appearance. Saskia is a hard-working grad student whose interests are solely academic, while Jenny, an interior designer, is glamourous, thrill-seeking, capricious and narcissistic. Still, when Jenny is severely injured in an accident, Saskia puts her life on hold to be with her sister. Sara and Mattie are sisters with a difficult relationship. Mattie, the younger sister, is affectionate, curious and intellectually disabled. As soon as Sara is able, she leaves home, in pursuit of a life of the mind and the body: she loves nothing more than fine wines, sensual perfumes, and expensive clothing. But when their mother dies, Sara inherits the duty of caring for her sister. She moves Mattie in with her, but tragedy strikes soon after. Now, both Sara and Saskia, having been caregivers for so long, find themselves on their own--until a cascade of circumstances, both devastating and unexpected, brings them together. The waves from these events eventually engulf Sara and Saskia, sisters in mourning, in a quest for revenge. Consent is a startling, moving, thought-provoking novel on the complexities of familial duty and on how love can become entangled with guilt, resentment and regret.