The plot of an easily controlled male and an ambitious wife has parallels with William Shakespeare's Macbeth. The analogy is made clear in the line 'lust is what becomes of an aspiration when it is allowed to grow and become ambition' (cf Macbeth IV iii).
Chita Rivera's acting debut.
This episode was watched by Barney and Betty Hill shortly before their claim of alien abduction. The alien they sketched under hypnosis is noticeably similar to John Hoyt's makeup.
The laser unit aimed up into the sky is the same unit used for the teleportation device in The Mice (1964).