All six episodes from the British television drama in which Sheridan Smith stars as a cleaner who discovers a lucrative way to make money. Struggling under the weight of her debt and with an online gambling addiction beginning to spiral out of control, Sam (Smith)'s family life begins to suffer, forcing her to question if there will ever be a way out of her situation. While working as a cleaner in a London stock market office, Sam realises she has access to a wealth of stock information and tips which could soon see her flush with money and so sets up a means of acquiring the information while going about her day-to-day job. How long will she be able to keep up her double life before landing herself in even more trouble?