寂寥冬日，艾娃一塌糊塗的渾噩日子，在看到一則社群媒體上的貼文之後，又更向下沉淪。與家人關係疏離的她，載上一塊冰磚重訪故里，憶起那個無人知曉，卻改變她一生的童年祕密。在十三歲的焦熱夏日，她與兩個男孩組成三劍客，在男孩兄弟去世的餘波中浮沉。擺爛的父母、失落的情愫、發育的身體，艾娃在渴望愛的旅程中艱難摸索。然而，一場逐漸失控的謎語冒險遊戲，將她和夥伴推向了無可挽回的悲劇深淵。

What do you do if you look like the girl in the nude photo? Exactly one year after the sudden death of her twin sister Sara, Ines's life is turned upside down again when she receives an email containing a nude photo of Sara. Sender: A blackmailer who plays the game hard. In one evening Ines will discover the dark secrets of her twin sister.