Starring Michael Dunne as Dr. Dan Danfield, criminal psychologist. Where are the complex criminal personalities for Dr. Dan to tinker with? There's the rub. In fact, the most complex person on the show is Dr. Dan Danfield's pretty young secretary, Miss Rusty Fairfax. Why does Dr. Dan always call her Miss Fairfax? Dr. Dan goes to extremes to keep her at arm's length, but it's obvious he's just taunting her. After all, he's a criminal psychologist, and the way he treats Rusty is criminal! She can flare up, but usually just slow simmers in her professionally feminine way. Mario is Dr. Dan's chauffeur.