Ken tries to help a patient -- comic Dicky Wexler -- whose cancer has returned; Allison runs into a patient at another therapist's office.

Ken's confidence as a medical expert witness is shattered when the plaintiff's lawyer shreds his credibility on the stand; Dave gets Allison's help to sew a designer dress for Molly.

When Ken avoids giving Dave "the talk," Julie inadvertently does it herself. But then Ken has to fix things when Allison finds out that he took credit for doing it. Meanwhile, Clark takes questionable advice from Pat.