The title suggests that once you are associated with Slough House, the "stench" of failure follows you, making it nearly impossible to redeem your reputation.

Lamb’s secretary with a complicated past, acting as the emotional glue of the office.

The high-ranking, ruthless MI5 official at The Park who oversees the "Slow Horses" from a distance. Themes & Atmosphere

The episode follows (played by Jack Lowden), a talented but hotheaded MI5 agent. After a very public, disastrous training exercise at Stansted Airport, he is demoted to Slough House—a "purgatory" for agents who have messed up their careers. Key Characters & Dynamics