When Mae is hired to work for the world’s largest and most powerful tech and social media company, she sees it as an opportunity of a lifetime. As she rises through the ranks, she is encouraged by the company’s founder, Eamon Bailey, to engage in a groundbreaking experiment that pushes the boundaries of privacy, ethics and ultimately her personal freedom. Her participation in the experiment, and every decision she makes, begin to affect the lives and future of her friends, family and that of humanity.
圆圈》故事背景设置为未来，爱玛•沃森饰演的的女主人公Mae就职于一家名为“圆圈”的互联网科技巨头公司。该公司将用户的所有个人信息都与其操作系统联系起来，并因此开启了互联网新时代。Mae在公司里遇到了名为Kalden的神秘同事，并与之相恋。而约翰•波耶加扮演的Kalden其真实身份则是公司的创始人之一，他凭借自己的天才创立了这一系统，最终也意识到“圆圈”对个人隐私的侵犯，并希望将其关掉。凯伦•吉兰作为主演之一，与爱玛沃森一样，也在“圆圈”公司上班，她表面上看起来略显笨拙，但实际上拥有超高智商。汤姆•汉克斯目前的角色还未确定，他很有可能扮演圆圈公司的另一幕后老板。