To save himself, Xander Quinn must find the one woman with dark energy—Sienna Jade—and make love to her, even if it costs her life. He deceives her into marriage and secretly pays for her grandmother’s treatment. Grateful, Sienna gives herself to him—unaware of the deadly price. Xander later falls for her and desperately searches for another cure. However, before he can save her, she discovers the truth. Heartbroken, she tries to escape, only for fate to seal her tragic end. Miraculously revived by her grandmother's pill, she wakes up blind. Seven years later, she returns with her daughter, unknowingly crossing paths with Xander. Oblivious to their identities, he torments them—until the truth shatters him. Determined to win her back, he conceals his identity. But when Sienna regains her sight, she finally sees the monster who once stole her life.