MR. REEDER IN ROOM 13 is a nondescript outing for Edgar Wallace's famous hero although he doesn't make much impact in this low budget version of a popular novel. Reeder sits on the sidelines while a young associate goes undercover in Dartmoor prison in order to break up a counterfeiting ring. What follows is mildly sluggish and rather too convoluted for its own good, with lots of extraneous characters doing not very interesting things. It's not a good example of the author's style.