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死亡医生玛丽
In the third and final chapter, Dr. Mary Harris must come face-to-face with her own personal choices, ethics, and demons in a way she never has before. The death retreat is up and running, but its cover as a legitimate hospice is crumbling away and with it the idyllic vision Mary and Des had for continuing their work in quiet secrecy. With Mary’s family and the work she loves in jeopardy once more, she realizes she is finally going to have to put life, with all of its complexities and imperfections, first.
玛丽暗中接收自己的患者，但其中一次协助死亡并未按计划顺利进行。
玛丽向德斯作出承诺，再不会令临终关怀病房陷入险境。玛丽与弗朗西丝共同接诊一位年长的癌症患者。杰西察觉到娜奥米有些不对劲。
玛丽发现了一件触目惊心的事情，将安妮引向与弗朗西丝之间的危险交汇点。与此同时，本试图与玛丽重修旧好，德斯与一位棘手患者产生了感情牵绊。
本请警方对弗朗西丝展开调查，迫使玛丽和德斯将协助自杀的计划暂时搁置，却带来了极为惨痛的连锁后果。同时，德斯与露西之间关系濒临爆发点，娜奥米的坠落螺旋仍在继续。
玛丽与本利用临终关怀病房设下圈套诱弗朗西丝上钩，而本则动用人脉关系深挖她此前的过往。
临终关怀病房突发一起谋杀案之后，玛丽与本必须在24小时内说服警方，弗朗西丝才是真凶。
