: Gemma continues to use Carly to spy on Simon and his mistress, Kate, further confirming the depth of his betrayal.
: Gemma maintains a normal home life with Simon to keep him off-guard while she gathers evidence for a potential divorce. Doctor Foster : Season 1 Episode 3
: Neil, a local accountant and neighbor, uncovers that Simon's business is failing and that he has been secretly using their joint assets, putting their house at risk. : Gemma continues to use Carly to spy
: The couple is briefly forced to unite when Simon's mother passes away, momentarily complicating Gemma's plan for revenge. : The couple is briefly forced to unite
You can watch the full episode on platforms like BritBox or Amazon Prime Video . If you want to dive deeper into the story: Details on during these events? A summary of the Season 1 finale ? Information on the Series 2 sequel ? Doctor Foster, Series 1, Episode 3 - BBC One