冤 冤 相 報 何 時 了 ？ S u j i n 性 情 孤 僻 ， 漂 亮 動人卻從未談過戀愛；她文采出眾，是難得一見的編劇人材。Mira在畫館被施暴，錯手殺掉施暴者 ， 這 宗 突 如 其 來 的 謀 殺 案 正 好 為 S u j i n 帶 來改 編 劇 本 的 好 提 材 。 即 使 警 方 斷 定 是 自 衛 殺人，Sujin深信案中有案，認定一切都是Mira儲心 積 累 的 復 仇 計 劃 ． ． ． 原 來 S u j i n 有 著 不 為人知的過去，其筆下的殺手Lala，是純粹參照Mira，還是戲中有戲？「不要自己伸冤，寧可讓步，聽憑主怒」，復仇是否能超脫一切？太陽底下，冷冰冰的現實、劇本、夢境和回憶扭曲重疊，分不清真假先後，Sujin、Mira和Lala更是不分你我她，格局David Lynch得來卻相當寫實。

Su-Jin, a screen-writer with a tormented past, reads a newspaper article concerning a murder case involving art curator Lee Mi-Ra. Mi-ra was raped by an artist in a art gallery and then killed her rapist with scissors. She was then found not guilty due to her self-defense claim. Su-Jin believes that maybe the murder was premeditated. She then writes a screenplay based on her what if scenario and also takes actions against the person that raped her many years ago.

여성 성폭행과 복수를 소재로 시나리오 작업 중인 수진. 시간을 거슬러 보면 그녀에게도 매우 힘든 시간이 있었다. 수진의 시나리오 '라라 선샤인'은 그녀만의 세상이 된다.