I was quite excited to finally watch Houdini and His Diaries but I didn't like some of the additional material being spoken as truth about spiritualism.
Yes, there are fake psychics and mediums. Yes, they have taken advantage of many people. Hopefully quite a few were put in jail for fraud.
But I have been a Spiritualist since a cradle Catholic and you've got to know in the 1800s Spiritualism was the #1 American religion. So NOT directly related to WW1. And I researched after the show. There is almost zero evidence that Spiritualists were engaged in murder and organized crime which was repetitious ly said on the show as noncontradictory fact. Lost some respect for the show and host.