I can't recall how many, but Burr's first big series, Perry Mason, had a few episodes with the plotline where a family member would return after being thought dead and then the mystery is whether it's the real deal or a scammer. That's the case in this Ironside, where Kim Hunter's daughter returns "from the dead" after years of being gone, saying she was in a drug haze for many years. Along with that mystery is the mystery for the Ironside gang as to who killed Hunter's son. I won't spoil it for you, but there's a very cool twist at the end, made possible by the acting of the inimitable Kim Hunter.
If you're any sort of movie buff at all, just close your eyes and listen to Hunter. Yes, it's Zira from the Planet of the Apes classic movies! Probably the best performance behind a mask by any actress in history? Gretchen Corbett is also particularly good as Hunter's possible daughter. It's really not a spoiler to say that her angst at the facade gives away that part of the mystery. She had a very memorable role in the classic Columbo episode, "An Exercise in Fatality."
Whit Bissell joins us again, as the lawyer, and it's fun to see his face. He was all over the movies and tv from the 50's onward, usually playing doctors and lawyers. He serves our Ironside/Star Trek connection, appearing in the classic Star Trek episode, 'The Trouble with Tribbles."
I think you'll like this episode. Hunter plays it well and it leaves you with the thought, wonder how this turned out over time....?