When Iris finds a photograph of herself sleeping in her locked bedroom—delivered to her upstairs neighbor's mailbox by mistake—she confronts the charming stranger who's barely spoken to her in three years. Dylan's calm denial shatters when he reveals he received the same photo with a chilling note, and suddenly they're both pawns in someone else's twisted game. As Iris digs deeper, she discovers Dylan has been watching her building for months, tracking her movements, and hiding secrets that connect to a night five years ago she can't remember. The truth Dylan finally confesses rewrites everything she thought she knew about her past—and explains why someone wants her to remember what she's spent half a decade trying to forget. In a psychological thriller where memory is weaponized and family ties bind tighter than fear, Iris must decide whether the man who's been lurking in the shadows is her greatest threat or her only protection.