In 1920, Sir Arthur Conan Doyle and Harry Houdini met sharing an interest in spiritualism. Doyle led the movement participating in many séances. Houdini was a professed skeptic, yet hid his true feelings about spiritualism and the afterlife. Their friendship continued for a few years, but a public feud about medium cases led to an ultimate breakup. FOX brings to television, with some literary license, a 10-episode first season exploring this relationship as the two men set out to investigate the paranormal: one wishes to validate as truth, the other wishes to debunk as fakery.