艾莉（Elli）是一个机器人，与一个叫“父亲”的男人住在一起。他们在一起度过了整个夏天，艾莉（Elli）分享了“父亲”的回忆或她为之编程的其他内容。回忆对他来说意味着一切，但对她而言却毫无意义。然而，有一天晚上，在回声逐渐消失之后，她逃到了森林。

17-year-old Liv has just moved to London with her mother Ann and little sister Mia, where she meets the mysterious Henry, who has an extraordinary ability. Namely, he possesses the ability of lucid dreaming. But this kind of adventuring and playing with dreams can become very dangerous. An exciting and engaging youth a…