This is an adaptation of E. Lockhart’s best-selling young adult novel of the same name.                                                                    　　The series focuses on the theme of the results of one’s mistakes and revolves around the affluent and seemingly perfect Sinclairs, who enjoy spending every summer gathering on their secret island. However, something strange happens to one of the members of the family, Cadence, in the summer of her 15th year. Two years later, she and the three other “Liars” Johnny, Mirren, and Gat re-emerge to stir Cadence to recall the incident. “A tragic love story and an amnesia thriller set on a privately owned island off the coast of Massachusetts,” the logline further elaborates.

三名精英宇航员前往土星的卫星土卫六执行长达数年、可能存在风险的任务。团队准备进行一项高度危险的引力弹射，这任务要么将他们弹射到土卫六，要么进入深空，一名宇航员要保持对现实的控制变得越来越困难。

在接受了关于不良行为的可怕教训后，三个不守规矩的六岁孩子开始了一场混乱的追求，寻求最终的“善行”，处处引发混乱。

在父亲的小餐馆发生了可怕的案件后，Nancy决定独自值完当晚的最后一班来收拾残局。但她不知道，自己并非孤身一人，她必须在漫漫长夜中为自己的生命而战。