"Not Going Out" is a British television sitcom that follows the lives of two flatmates, Lee and Kate, who are constantly finding themselves in awkward and hilarious situations. Lee is a lazy and immature man who works as a handyman, while Kate is a smart and ambitious woman who works as a writer. Despite their differences, they form an unlikely friendship and navigate the ups and downs of living together. The show explores themes of friendship, love, and the challenges of adulting in a comedic and light-hearted way.