Alice is a young girl confined to a remote asylum for the mentally ill and disabled. The staff and patients know her as Ms. Sunday—a sweet, gentle girl with the soft voice of a princess and a smile so pure it could melt hearts. To everyone around her, she’s the very image of innocence and kindness.

But behind that angelic mask lies something far more dangerous.

Beneath the surface, Ms. Sunday hides a dark, manipulative nature. Twisted by past trauma and emotional scars, her mind has become a labyrinth of cruel fantasies and carefully calculated lies. She plays the role of the helpless girl perfectly—earning trust, sympathy, and even love from those who try to help her.

One of them is Dr. Stevens, a troubled psychiatrist who becomes emotionally entangled in her web. Blinded by her charm and his own loneliness, he begins to lose sight of reality—crossing ethical lines and ultimately descending into darkness under her influence.