當她心愛的妻子莉亞，前往海中深處執行六個月的研究時，米麗沒想到那是她們的最後一面，研究失敗，潛水艇失事，而所有研究人員也因此葬身大海…本來應該要如此的。 當莉亞出現在家門口時，米麗簡直不敢相信，無論如何她是回來了，但原本應該回歸正常的生活卻再也回不去了，她們一起講過的笑話、看過的電影、經歷過的片刻，米麗慢慢再這些細節裡察覺這個女子，她深愛的女人，已經不再是那個莉亞。來自海底深處、某種她無法理解的「東西」跟著莉亞來到了陸地。米麗感到恐懼的同時，卻依然深愛著莉亞，而她最終必須做出抉擇… When Leah finally returns after a deep sea mission that ended in catastrophe, her wife Miri knows that something is wrong. Whatever happened in that vessel stranded on the ocean floor, Leah has carried part of it with her, onto dry land and into their home. As Miri searches for answers to her wife’s altered state, she must face the possibility that the woman she loves is slipping from her grasp…