Newspaperman Walter Jameson is assigned to shadow his friend Professor Craig Kennedy for a month to report on how he solves mysterious crimes and to give an intimate picture of the man and his work. Basically, Kennedys a scientist who uses his superior scientific knowledge and a bunch of contraptions he makes to expose the criminals. The Dream Doctor is the third book in the Dr. Kennedy series written by Arthur B. Reeve, the short stories were stitched together into pseudo-novels. Reeve was an American mystery writer who created 82 Craig Kennedy mystery stories. The stories have a very Sherlock Holmes type feel. An enjoyable collection, especially for those interested in sleuthing aided by science.