该剧是一部奇幻悬疑惊悚剧，改编自日本推理小说《Repeat》，讲述10位获得重返时光的人穿越到一年前，陷入意想不到的命运的故事。
由《好运罗曼史》金京熙导演执导，李秀景编剧执笔，2020年3月首播。

A box office star has to prove his action credentials in the real world when he's kidnapped and held for ransom.

Set in 1999's rampant violence, the story follows the intense bond of friendship between girls during a scorching summer.