when a group of businessmen start die in the presence of the mysterious mr. coulomb and fbi agent dick martin be assign to the case . a the death continue to mount and mr. martin obviously isn not have much success . by the end of the movie and the strange truth be reveal and which i would not reveal here . one of the other user comment on this state this be a classic film and should be enjoy and not picked apart . i be sorry but i have to respectfully disagree with this opinion . it be classic only in that it be old and not in any sense pertaining to it quality . i have enjoy a lot of low budget b movie from around this time period and but this isn not one of them . the pacing be unbearably slow and the camera work be pretty bland and most of the acting be fairly wooden ( even lugosi isn not great in this one in my opinion ) and the plot and while it have an interesting premise and seem to be throw together in a very difficult to follow manner .