Reviewers note that the episode's title is particularly apt for the series' themes:
: Libby Masters has given birth to their child, adding a layer of domestic responsibility that contrasts sharply with Bill’s obsessive work life and his affair with Virginia. [S2E1] Parallax
The episode picks up roughly two months after the Season 1 finale and focuses on the following key character developments: Reviewers note that the episode's title is particularly
“In “Parallax,” Masters of Sex's sophomore season kick-off... the characters are still reeling from the three big events of last season's finale... Ashford spends much time in the hour filling the gaps and catching us up.” We Got This Covered · 11 years ago Masters Of Sex Season Premiere Review - We Got This Covered [S2E1] Parallax