High school teacher Cheng looks back to his repressed childhood memories, as he finds an anonymous suicide note in the classroom. He strives hard to prevent another tragedy from happening, meanwhile facing a series of family problems, his wife is divorcing him, and his father is dying.
Kay is a tough-as-nails investigative reporter, and goes undercover at a home for the disabled based on a tip about staff abuse of the residents. She not only corroborates the frightening allegations but also discovers how disastrously flawed Hong Kong’s health care system is, especially for those who cannot care for themselves. However, after her story breaks, further unspeakable truths are revealed leading Kay on a dire crusade for justice.
Accomplishing her late husband's wish of remaining a mysterious neon sign, a depressed middle-aged widow and the neon signmaker's protégé discover surprises and bitterness amidst the city's vanishing glow.
