'Allen v. Farrow': 5 takeaways from the second episode, which focuses heavily on Soon-Yi Previn Sonia Rao, The Washington Post March 1, 2021 FacebookTwitterEmail From left, Moses Farrow, Soon-Yi Previn, Dylan Farrow and Woody Allen appear in a family photograph.HBO The HBO docuseries "Allen v. Farrow" returned for its second installment Sunday night, focusing on the early stages of director Woody Allen's relationship with Soon-Yi Previn, the daughter of his then-girlfriend, Mia Farrow. Farrow discovered the "affair," as Allen called it, when she found explicit photos of Previn at Allen's apartment just seven months after her high school graduation. Farrow and Allen's relationship was already under great strain because of an unhealthy power dynamic, according to the series, as well as Allen's alleged inappropriate behavior toward their young daughter, Dylan. In 1992, 7-year-old Dylan told Farrow that Allen had sexually assaulted her. The accusation became a central component of Farrow and Allen's contentious custody battle.