Peep Show is a British sitcom in which Olivia Colman portrays Sophie Chapman, the love interest of one of the main characters. The show follows the lives of two dysfunctional flatmates, Mark and Jeremy, and offers a unique perspective by showing their inner thoughts through voiceovers. Colman's character provides a source of romantic tension and comedic moments throughout the series, which has gained a cult following for its clever writing and unconventional format.