On the early morning of the winter solstice, Yang Yuan's nine-year-old son disappeared without a trace in the stairwell. The police found that he had sneaked into a neighbor's house just before his disappearance. The suspicious neighbor has a solid alibi, as if remotely controlling a magic room escape.

On the other side of the unit, Yuan Wu's father died suddenly after drinking. In order to receive his pension, Yuan Wu decided to hide his father's body in the rental house. During the period, he encountered the fear of illusion and reality, and inadvertently touched on another mystery.

Six months ago, Lin Chu Ping, a single female white-collar worker living alone, woke up in her home and found that she was violated in her sleep, but had no clue about the culprit, only a piece of ether handkerchief left on the window sill...

These seemingly unrelated people, in different time and space Overlap each other and start their journey of finding answers.

该剧集根据贝客邦的小说《海葵》改编。讲述一群长期缺失原生家庭的陪伴的小孩与父母之间的救赎与被救赎的故事

冬至清晨，楊遠九歲的兒子在樓梯間消失無蹤。民警發現他曾在失蹤前一刻潛入鄰居家中。可疑的鄰居有著牢固的不在場證明，仿佛遙控一般操縱著一場密室逃脫的魔術。單元的另一邊，袁午的父親酒後猝亡。為了冒領退休金，袁午決定在出租屋藏匿父親的屍體，期間遭遇了幻覺和現實交織的恐懼，而又在無意間觸及了另一個謎團。