His first movie after longtime friend John Belushi's death, Aykroyd shows much fatigue trying to pull off a character that would have been a snap for Belushi.Instead, "Doctor Detroit" gives us bookish professor Aykroyd masquerading as a weird, violent pimp to ward off a rival known only as Mom. That's bad enough, but he also has classes to teach, a school dinner to host, four ladies of the evening to protect and a Pimp's Dinner (or something like that) to attend. No wonder Aykroyd seems stupefied most of the time. Why should the viewer be alone?It was on this film that Aykroyd met future wife Donna Dixon. At least some good came out of this chaotic mess.One and a half stars. You want good Aykroyd, see "The Blues Brothers". You want bad, see "Doctor Detroit".