State of Play is a British television drama series, written by Paul Abbott and directed by David Yates, that was first broadcast on BBC One in 2003. The series tells the story of a newspaper's investigation into the death of a political researcher, and centres on the relationship between the leading journalist, Cal McCaffrey, and his old friend, Stephen Collins, who is a Member of Parliament and the murdered woman's employer. The series is primarily set in London and was produced in-house by the BBC in association with the independent production company Endor Productions. The series stars David Morrissey, John Simm, Kelly Macdonald, Polly Walker, Bill Nighy, and James McAvoy in the main roles.

Plot

While investigating the murder of fifteen-year-old teenager Kelvin Stagg in what appears to be a drug-related killing, journalist Cal McCaffrey of The Herald (John Simm) and his colleagues Della Smith (Kelly Macdonald) and Cameron Foster (Bill Nighy) find a connection with the coincidental death of Sonia Baker (Shauna Macdonald), a young researcher for MP Stephen Collins (David Morrissey). As their investigation progresses, they uncover not only a connection between the deaths, but a conspiracy with links to oil industry-backed corruption of high-ranking British Government ministers.