The motto guiding twin brothers Sun Xiaotu and Sun Xiaohu in their work as paranormal investigators is that there is always more to the world than meets the eye. For them, what might terrify others is merely another day on the job. While they usually find it easy to keep their personal lives separate from their work, a series of bizarre events disrupts this balance when they investigate a seemingly standard haunting involving a pair of twins. These incidents cast doubt on their understanding of the supernatural world, especially as they themselves become targets of the hauntings. As the brothers dig deeper for answers to the paranormal mysteries confronting them, the distinction between truth and fiction grows increasingly blurred. Amidst the challenging and occasionally perilous adventures that lie ahead, a single question persists: what secrets are the ghosts attempting to conceal from them, and are they already more intertwined with the spirits than they initially believed?