Dwight Schultz and guest star Daniel Davis appear together in the Star Trek: The Next Generation episode Ship In A Bottle as Reg Barclay and Moriarty respectively.
Dr. Richter says the mystery woman is a patient of his named Sara Teasdale, which is the name of a famous American poet.
The red beach house used in this is often seen in a number of TV shows during the 1960s, 70s, 80s.