I generally don't like episodes where they extensively use flashbacks, so "Promises to Keep" has a big strike against it from the outset. It begins with yet another good looking girlfriend for ugly 'ol Dr. Quincy. The big difference is that this one wants a commitment and this spurs Quince to begin thinking about his first marriage. So, throughout the show you have scenes of younger Quincy with Mrs. Quincy. This makes his think about and re-think the idea of bringing a new wife into his life. Additionally, he struggles with a work overload--it seems that one of the pathologists was a fake and they need to review all his old cases to make sure mistakes weren't made.
The biggest thing I noticed about this show is that the producers oddly chose to cast Anita Gillette as the first Mrs. Quincy. This is because in Season Eight, Gillette went on to play the second Mrs. Quincy as well! No, they were not supposed to be twin sisters--just two women who looked 100% like each other!! And, no, the second wife is NOT a zombie version of the first (though this would have been so cool for a show about coroners). Bizarre to say the least.
The other thing I noticed, and I agree with the other reviewer, is that this particular show seemed much more like a soap opera than an episode of "Quincy". This isn't 100% bad--but made for odd viewing to say the least.
So did I like this odd episode? Well, I didn't hate it and it was nice to humanize the good Doctor just a bit. I just wish they'd picked another actress to play wife #1 (such as Susan Anton or Esther Rolle).