The Man Who Knew Too Much (2020) documentary

A British intelligence operative falls out with his superiors and is framed for a murder.
Colin Wallace, was a former Senior Information Officer at the Ministry of Defence, UK. As part of his work Colin Wallace spread fake news, created a witchcraft scare, smeared politicians and attempted to divide and create conflict amongst communities, organisations and individuals. Colin Wallace fell out with sections of the British intelligence community, he was framed for a murder and sentenced to 10 years in prison.