A great non-factual premise completely untrue or a non-factual-sequence of events. Yes, they did know each other during the period from 1920-1940, depending upon when Doyle and Houdini died. Yet, it is "set" in Victorian England some 20 years earlier! They actually met after the death of Doyle's mother. Doyle was a Spiritualist and Houdini thought it all to be "hokum". Doyle did not consider himself a Christian! His sick (first) wife died of Tuberculosis and there is no mention, that I can find, of his sick wife's "fainting spells" or ever awakening from a coma. So, enjoy it for what it is. A highly fictional account of two charismatic characters. Very well written, quite enjoyable. A Canadian-British co-production! This is not to be confused with that other "PBS" recent "Sherlock" series. We may see anything, as Doyle also wrote science fiction about the 21st Century!
Review of Houdini and Doyle
