 Crime series about a secret government department, "Room 17", set up to deal with crimes that baffle police & government agencies. Headed by veteran WW2 agent Oldenshaw and partnered, initially, with criminologist Dimmock (later replaced by Imlac Defraits in series 2), the two men solved all manner of crimes with one unique difference - they never left the confines of their office, working out the problems of the case from "home"...