Genius detective Formaldehyde, although a zombie, has an IQ no lower than that of single-celled organisms! Unlike ordinary zombies, Formaldehyde can acquire different abilities by replacing his brain, and can transform into a powerful person from ancient and modern times at any time! It can be said that "there are no unsolvable problems, only brains that cannot be bought!" Such a powerful Formaldehyde is not proud and complacent. For justice, truth and rent, he is determined to crush all evil and crack all tricks.