First thing I remember about this is the "Hawai'ian" music bed, playing as Paul Hecht's character is talking with the (formerly nekkid) lady. It's the same music bed used in a 1974 RMT, also set in the Aloha State, called "Wave of terror".

This show is...quite interesting. With a necklace of radioactive pearls there could have been some additional suspense added. (I'm thinking of an episode of Micheal Douglas' (as a pup) old "The streets of San Francisco" detective show with Karl Malden entitled The 24 karat plague.)

In that episode, Anthony Zerbe played an ill-fated fence who was hoodwinked into melting down a cargo of stolen gold, without being told what he was being exposed to were in fact trailings of a highly radioactive gold isotope which was a byproduct from a nuclear reactor.

After seeing that TV show this episode plot seems kind of tame, but I especially liked Paul Hecht's acting job in the play.