With the emergence of the villainous Insomnia, nearly the entire world has been plunged into a terrifying slumber, leaving only a few select heroes of the DC Universe standing to combat this ominous new threat. Thankfully, among those left is none other than Boston Brand, better known as Deadman, who is well equipped to uncover the secrets of the threat at hand. Unfortunately, that doesn't mean Deadman is at all prepared for the truth he finds lurking at the heart of these dark proceedings, nor for the price he will pay for discovering them.
Source：https://www.cbr.com/dc-knight-terrors-insomnia-secret-origin-weakness/
