“The Dummy Detective” (*1/2 out of four) was a dismal comedy made by and for dummies about a detective (Jonathan Geffner) who also happens to be a ventriloquist and arrives at a cheap hotel inn and investigates a serial killer and finds the killings may be traced back to the hotel owner (Sean Young) or some of its patrons (Deborah Twiss, Ed Altman, Kristin Samuelson, and others). Star/writer/co-producer Geffner unfortunately bears most of the blame for this almost painfully unfunny film which shamelessly rips off the similarly titled “The Cheap Detective” and also “Clue”. Juri Beythien’s crisp 50’s-like cinematography is one of film’s few assets.