Building on the now well trammelled theme of these "Crime Doctor" films, this time "Dr. Ordway" (Warner Baxter) is engaged by a man who is finding himself in strange parts of town with no idea how he got there. It's whilst investigating that the doctor discovers that this fellow has been slain. Things get more complicated when he meets the despondent fiancée "Irene" (Ellen Drew) who is from a wealthy and dysfunctional family and who also proves to be somewhat enigmatic. Meantime, there are also two goons hanging around too. What can they want with her sister "Natalie"? Loads to challenge the little grey cells here and this largely spares us the psycho-babble and just presents us with a mystery that the audience knows about for most of the film, but it's still enjoyable enough watching Baxter pick up the clues and solve the conundrum. No, it's not great - it's procedural low-budget stuff, but Drew is rather better than most of the damsels in these films and it's amongst the best of the series,