On September 11, 2001 a mysterious spacecraft of unknown origin dubbed "WTF432" appeared in Earth's orbit and fired a beam of energy, striking the planet's surface. In the aftermath, dimensional fractures or "rips" in space-time appeared throughout the world. These rips expel torrents of reality-distorting energy and are used by malevolent entities to travel between dimensions. The Terror Management Agency (TMA) was formed to track, investigate, and contain rip related phenomenon. In this dimension, this was the defining moment of 2001 . . . the twin towers never fell. Now, the long dormant WTF432 is active again, transmitting a signal to a remote town in California's Mojave Desert. The TMA sends bright and earnest Charley Gann and her razor-witted partner, Saoirse "Free" Somerfield, to investigate. Eyewitnesses are reluctant to talk, local law is evasive, and the only evidence is a meandering trail of blackened footprints leading into the badlands . . . The In-Between follows our pair of reluctant heroines as every clue reveals another layer, exposing a cosmic struggle for control amongst a clandestine energy company, a doomsday cult, and the trans-dimensional entity they worship.