《面具》以中共在哈尔滨解放初期的反特行动为时代背景。1948年腊月初一，在哈尔滨潜伏十年的军统特务李春秋（祖峰 饰）突然被唤醒，要求执行“黑虎计划”。李春秋十年的平静生活被彻底打乱，关于信仰的抉择、家庭的责任、情感的归属，极限境遇加之一身，经过一系列惊心动魄的斗智斗勇， 他最终看清了国民党特务机关的血腥残酷，在共产党人的感召下弃暗投明，实现了信仰从忐忑到觉醒的蜕变。
纽约乖乖女Jackie在一场意外失去父母后，母亲的好友Katherine Walter成为了她的监护人，并把她从纽约上东区带到了科罗拉多州的郊区生活——只不过，还有七个Walter家的男孩也同时住在这里，其中有两人还同时喜欢上了Jackie，但她却还是一心想要按照自己既定目标前进：考上普林斯顿、回到纽约——她，能如意吗？ 这个故事原载于同人小说网站WattPad，连载在这里的《之后》和《亲吻亭》先后成为热门电影系列后，制片公司们将眼光放在了同个地方连载的热门小说上，这部由Ali Novak所写的网络小说就有超过8000万的阅读量。
James Purefoy stars as William Travers, a criminal barrister who is recovering from a traumatic series of events that have shaken his belief in the legal system. On the surface, Travers is a picture of success; an accomplished criminal barrister happily living with his wife (played by Dervla Kirwan) in rural Suffolk. However, Travers is still recovering from events in his past when he is drawn into a case that involves his old friend Martin Newall (Nathaniel Parker), who faces conspiracy and murder charges while at the same time being investigated by a vicious and vengeful detective DS Mark Wenborn (Creed Miles). The five-part series from acclaimed writer Anthony Horowitz (Collision, Foyle's War) is a story of friendship, conspiracy, betrayal and murder as well as a critical look at the way the legal system operates.
