Ah Lok, a kind and honest elementary school teacher, is a schizophrenia survivor. Although he longs for love, he never dares to fall in love. By chance, he meets the beautiful and refined Xinxin on the street. He falls in love at first sight but struggles whether to disclose his illness to her. After hesitating, he unfortunately suffers from another attack and is haunted by hallucinations. He also discovers her true identity, which turns out to be a scheming psychological counselor? The two develop a suspenseful and tortuous forbidden love, which seems like a fantasy.